Best Expedition Backpacks of 2026 – 70+ liters

When you’re heading deep into the wilderness for five days or more, space and support matter. A 70-liter or larger backpack gives you room for several days of food, water, extra clothing, sleeping equipment and cooking gear. Winter trips can require even more space for insulated clothing, a bulky sleeping bag, crampons and other equipment.

The right capacity depends on your equipment and supplies as much as the length of the trip. These packs can be useful for extended backpacking trips, trekking, expeditions and travel, but they may be too large for a short hike with compact gear. Compression straps help keep a partly filled pack stable. For more advice, see how to pack a backpack and our guide to choosing the right backpack size.

For best five expeditions packs we shortlisted the Osprey Aether Plus 70 for its adjustable fit and removable daypack, the Gregory Baltoro 75 for its organization, and the Deuter Aircontact Core 70+10 for its expandable storage. The Mountain Hardwear AMG 75 is our choice for carrying technical climbing and ski equipment, while the Kelty Coyote 85 offers plenty of space for a more modest budget.

For in-depth information about choosing a backpack, read our Hiking Backpacks Guide.

1. Our Expedition Backpack Picks

1. Osprey Aether Plus 70 – our pick for heavy trail loads and day hikes from camp
2. Gregory Baltoro 75 – easy access to water, layers and gear on long treks
3. Deuter Aircontact Core 70+10 – useful extra space for bulky gear and food between resupplies
4. Mountain Hardwear AMG 75 – our pick for ski and mountaineering expeditions
5. Kelty Coyote 85 – the budget pick for hikers who need a full 85 liters

2. Comparison of Expedition Backpacks

Feature/Product	Osprey Aether Plus 70	Gregory Baltoro 75	Deuter AirContact Core 70+10	Mountain Hardwear AMG 70	Kelty Coyote 85
Weight	5 lbs. 9 oz.	5 lbs. 4 oz. (L)	5 lbs. 9 oz.	4 lbs. 15.4 oz. (M/L)	4 lbs. 14 oz.
Weight (Metric)	2540 g	2370 g (L)	2531 g	2250 g (M/L)	2210 g
Sizes	S/M, L/XL	S, M, L	One Size	S/M, M/L	One Size
Frame	Internal	Internal	Internal	Internal	Internal
Fits Torso	16-20 in. (S/M); 19-23 in. (L/XL)	16-18 in. (S); 18-20 in. (M); 20-22 in. (L)	17 – 24 in	16-19 in. (S/M); 18-21 in. (M/L)	15.5 – 21 in.
Fits Torso (Metric)	40.5-51 cm (S/M); 48-58.5 cm (L/XL)	41-46 cm (S); 46-51 cm (M); 51-56 cm (L)	43 – 61 cm	41-48 cm (S/M); 46-53cm (M/L)	39– 53 cm
Material	Nylon	Nylon	Nylon/Polyester	Nylon	Polyester
Volume	68 (S/M); 70 (L/XL)	71 (S); 75 (M); 79 (L)	70 + 10	75 (S/M); 78 (M/L)	85
Backpanel	AirScape	Response A3	AirContact	n/a	AMP-Flow
Hip Belt	Yes	Yes	Yes	Yes	Yes
Sternum Strap	Yes	Yes	Yes	Yes	Yes

3. The Selection

Osprey Aether Plus 70

Our pick for heavy trail loads and day hikes from camp

Best for:

• Backpackers carrying several days of food or shared camping gear
• Trips that combine a long approach with day hikes from a fixed camp

We would choose the Aether Plus 70 for gear-heavy backpacking trips, especially when the plan includes day hikes from a fixed camp. The removable top lid converts into a small daypack with its own shoulder straps. That saves packing another bag for summit walks or shorter excursions when most of your equipment stays in the tent.

Osprey designed the pack around a close-fitting AirScape back panel and a supportive frame. The back length is adjustable, and the Fit-on-the-Fly system lets you extend the padded sections of the hipbelt and shoulder straps. We like this range of adjustment because getting the padding in the right place matters more than simply tightening the webbing. Osprey lists a load range of 30–60 lb (14–27 kg).

Organization is another major strength. A large front zipper reaches the main compartment, while a separate lower opening gives access to the sleeping-bag compartment. Lid pockets, hipbelt pockets, stretch side pockets and a front shove-it pocket help keep smaller items and wet layers separate. The pack also includes removable sleeping-pad straps, trekking-pole attachments, ice-axe loops, a hydration sleeve and a rain cover.

The high-tenacity nylon body suits regular use on rough trails. Air channels in the back panel provide ventilation, although the close contact and substantial padding may still feel warm. Our main reservation is the empty weight: about 6 lb 3 oz (2.80 kg) in L/XL. The smaller S/M holds 68 liters and weighs about 5 lb 10 oz (2.55 kg). If you have little use for the daypack, we would try the lighter Baltoro alongside it. The Aether’s extra features also make less sense if your usual load fits in a smaller, simpler pack.

Women's Version: Available - Osprey Ariel Plus 70

Note: Women's version might slightly differ from the men's version.

Video

Gregory Baltoro 75

Our pick for keeping gear within reach on a long trek

Best for:

• Hikers who drink from a bottle and want to reach it while walking
• Backpackers carrying heavy loads who want several ways into the pack

The Baltoro 75 is the pack we would try alongside the Aether Plus when carrying a heavy load on a long trek. We particularly like its combination of front access, generous pockets and a bottle holster that can be reached with one hand. Those are useful features throughout the day, whether you are carrying camping supplies, bulky camera equipment or extra clothing.

The FreeFloat suspension combines a rotating hipbelt, auto-rotating shoulder straps and a supportive alloy frame. The design lets the harness move with your body, while the AirCushion mesh back panel leaves space for airflow through the contact surface. There are three torso sizes, with further adjustment in back length and hipbelt padding. Gregory lists a maximum carry weight of 65 lb (29.5 kg); that figure is a load guideline, so a loaded fitting is still essential.

Storage and access are strong reasons to choose it. The main compartment opens from the top, front and bottom. A U-shaped front zipper lets you retrieve a fleece from the middle without emptying the pack. Multiple lid pockets, front storage, large hipbelt pockets and a shoulder-strap pocket keep smaller items organized. The side pocket can hold tent poles, and attachment loops secure trekking poles or an ice axe.

Our main reservation is that all this organization adds fabric, zippers and weight. The Large weighs about 5.3 lb (2.4 kg) empty, and the US listing does not include a rain cover. We would choose it over the Kelty if we expected to use the front opening and bottle holster every day. For bulky equipment that stays packed until camp, the less expensive Coyote may be enough. Compared with the Aether Plus, the Baltoro gives up the convertible daypack but carries less empty weight.

Women's Version: Available - Gregory Deva 70

Note: Women's version might slightly differ from the men's version.

Video – Baltoro series overview

Deuter Aircontact Core 70+10

Our pick for expandable storage on long treks

Best for:

• Trekkers whose food bag takes up most of the spare room after a resupply
• Hikers who want front access and space for a bulky sleeping bag

We like the Aircontact Core 70+10 for long-distance trekking, travel and trips with bulky camping equipment. Its 70-liter main capacity can expand by another 10 liters under the raised lid. That is useful when a full food bag takes up the spare room after a resupply. As supplies shrink, lower the lid and tighten the compression straps to keep the load together.

The adjustable VariSlide back length, padded hipbelt and Y-shaped frame provide a useful range of fit adjustment. The hip fins can move with your stride, while Air Spacer mesh and a broad ventilation channel help air circulate at the back panel. We would pay close attention to the shoulder-strap shape during a loaded fitting, particularly around the neck and under the arms. Padding alone cannot make up for a poor fit.

A long J-shaped front zipper makes it easier to reach equipment deep inside the pack, and the separate bottom compartment helps organize sleeping gear. There are hipbelt pockets, side pockets, a front stash pocket, hydration compatibility and repositionable straps for a sleeping mat or tent. The nylon body combines heavier fabric with lighter sections. A removable rain cover is included, which is a useful part of the package for wet trekking trips.

The main drawback is weight. At about 5 lb 9 oz (2.53 kg), the Deuter is still a substantial pack. Its published recommended load is 15–20 kg (33–44 lb). We would choose it for the extra room needed by bulky equipment, while starting with the Aether Plus or Baltoro if the expected load regularly exceeds 20 kg. The extension adds storage space; it does not increase the recommended carrying load.

Women's Version: Available - Deuter Aircontact Core 60+10 SL

Note: Women's version might slightly differ from the men's version.

Mountain Hardwear AMG 75

Our pick for mountaineering and ski expeditions

Best for:

• Ski mountaineers who need to carry skis on the approach
• Climbers hauling a rope, crampons and avalanche tools to camp

We would choose the AMG 75 for mountaineering and ski expeditions where a rope, crampons and avalanche tools need secure places outside the main compartment. It is built around technical equipment carry, with A-frame and diagonal ski attachments, a rope strap, a front tool pocket and a separate stash pocket for crampons. Reinforced loops on the hipbelt can be used for pulling a sled.

An aluminum frame and a pivoting, padded hipbelt support the load while allowing movement at the hips. Long compression straps wrap around the pack to secure bulky equipment and reduce the volume as supplies are used. The reinforced, stand-up base makes loading easier at camp. Deep side pockets can hold tent poles, pickets or bottles, and the floating lid adds smaller-item storage. The pack is also hydration compatible.

We like this layout for an alpine approach because tools have their own storage even when the main bag is full. The reinforced fabrics and water-repellent construction suit rough mountain use, but the pack is not waterproof. The M/L weighs about 4 lb 15 oz (2.25 kg), which is less than the larger Aether Plus despite the AMG’s technical attachments.

The main compromise is convenience on ordinary backpacking trips. The front zipper opens a tool pocket; access to the main compartment is through the top. We would prefer the Deuter’s front opening for a summer trek where reaching food and spare layers matters more than carrying skis. The AMG is also an expensive, specialized choice if you rarely use its technical features.

Women’s version: The AMG 75 is unisex. Choose the harness size by torso length and check the hipbelt fit with the pack loaded.

Video – AMG series overview

Kelty Coyote 85

Our budget pick for bulky camping gear

Best for:

• Backpackers sharing the load of a family tent or group meals
• Hikers with bulky sleeping gear who need space on a budget

The Coyote 85 is our budget pick for backpackers who need room for bulky camping equipment. Its 85-liter capacity can be useful when carrying a shared tent, group meals or a large synthetic sleeping bag. We would also consider it for occasional long trips where the price of an Aether Plus or Baltoro is difficult to justify.

The FIT-Pro harness adjusts the back length, while a perimeter frame and center stay support the load. Kelty’s AMP-Flow back panel provides ventilation channels, and compression straps help keep the contents together. The published torso range is 15.5–21 in. (39–53 cm). Taller hikers should check that range carefully; extending an adjustable harness does not make every pack suitable for a long torso.

Organization is straightforward. You pack through the top, reach sleeping gear through a bottom opening, and use the lid, front and side pockets for smaller items. The channels behind the side pockets are useful for tent poles. We like having separate places for camp equipment, although the Deuter’s long front opening makes reaching the middle of a packed bag easier.

The Coyote weighs about 4 lb 14 oz (2.21 kg). That is roughly 1.3 lb (590 g) less than the L/XL Aether Plus, despite having more storage. Its main limitations are the single adjustable torso size and the lack of a large front opening into the main bag. We would compare the fit with the Baltoro before committing to a heavy load. If your equipment already fits comfortably in 70 liters, an 85-liter pack also gives you unnecessary space to manage.

Women’s version: This is a unisex pack. Check both the torso adjustment and hipbelt fit before choosing it.

Video – Kelty Coyote 85 and 105

4. How We Test and Research Expedition Backpacks

Our experience with backpacking packs includes Gregory Paragon 58 review. He used that pack on a backpacking trip and several shorter hikes, looking at fit, carrying comfort, pockets, access and attachments. He particularly appreciated its side opening, while finding the trekking-pole attachment and hydration-bladder hanger less convenient. We researched the five packs in this guide using manufacturer specifications, fit information, product guides and retailer listings. The comparison focuses on useful adjustments, access to packed equipment, external attachment options, capacity and empty weight.

5. How We Rate Expedition Backpacks

Each pack has four separate scores out of five. These are editorial assessments of its documented design and published weight. They are not measurements of carrying comfort, stability or long-term durability. We show the scores separately, without a weighted total, because the features needed for a ski expedition differ from those needed for a long trek.

• Fit Adjustment: We give 4.0 for an adjustable torso and conventional hipbelt adjustment. We give 4.5 when that is combined with a choice of harness sizes or a moving hipbelt. A choice of sizes and extendable hipbelt padding earns 5.0. This measures adjustment options; it does not predict which pack will feel most comfortable on your body.
• Packing Access: Top access to the main bag earns 3.0. A separate lower opening raises that to 4.0. Front access combined with top and bottom openings earns 5.0. A zipped tool pocket is useful storage, but it is not another opening into the main compartment.
• External Gear Carry: Compression straps and external attachment points earn 4.0. Separate straps for bulky camping equipment raise that to 4.5. Dedicated ski and rope carry, separate tool storage and sled loops earn 5.0. More attachments are useful only if your trip calls for them.
• Empty Weight: Up to 2.00 kg earns 5.0; over 2.00 to 2.25 kg earns 4.5; over 2.25 to 2.50 kg earns 4.0; over 2.50 to 2.75 kg earns 3.5; and over 2.75 kg earns 3.0 within this selection. We used the Aether Plus L/XL, Baltoro Large, AMG M/L and the single-size Deuter and Kelty. A smaller harness size can weigh less.

Capacity, price, rain protection and intended use also influence our recommendations, even though they do not have separate scores. A lighter empty pack is not automatically the better choice for a heavier load. Check the manufacturer’s load guidance, then try the pack with the weight you expect to carry.

6. Expedition Backpack Buying Advice – What Matters?

Capacity and the load you plan to carry

Start with the equipment for your trip, then add the most food and water you will carry between stops. Five days is a useful starting point for considering these larger packs, but it is not a rule. A winter weekend can require more space than a summer week with compact equipment and regular resupplies.

Check capacity and carrying load separately. An extension collar provides room for bulky clothing or food bags, but it does not make a frame suitable for more weight. If your equipment fits in a smaller pack, there is little benefit in choosing extra volume. If you also use the pack for travel, accessible compartments and pockets can help, although you may want a protective bag around the straps when checking it in.

Frame, Suspension, and Load Carrying Comfort

An expedition backpack is designed to carry heavy loads over long distances, and that only works if the suspension system does its job properly. A supportive internal frame is essential because it gives the pack rigidity and allows weight to transfer efficiently from your shoulders down to your hips. Transferring a substantial part of the load to your hips reduces the strain on your shoulders. This becomes especially important as the total weight increases.

The hip belt plays a critical role here. A wide, well-padded hip belt that wraps securely around the tops of your hipbones is what allows the frame to do its work. On expedition packs, the hip belt should feel substantial and supportive rather than minimalist. Some designs allow a degree of pivot or flex so the hipbelt can move with your stride while the frame supports the load. In a study involving 30 participants, people reported feeling more stable and finding the load easier to carry with the hipbelt fastened. The study did not find a measured improvement in standing balance from hipbelt use.

Shoulder straps matter too, but not because they should carry most of the weight. Instead, they should stabilize the load, prevent sway, and remain comfortable over long days. Well-shaped padding, suitable strap spacing and adjustable load lifters help keep the pack balanced and close to your back. When comparing expedition backpacks, try them with a realistic load. A pack that feels comfortable empty can feel very different with several days of supplies inside.

Fit and Adjustability

Even the most advanced expedition backpack will feel terrible if it doesn’t fit your body correctly. Torso length is the most important measurement when choosing a pack, as it determines where the hip belt and shoulder straps sit relative to your body. If the pack is too long or too short for your torso, weight distribution suffers and pressure points quickly develop. Your torso length is the distance between the bony bump at the base of your neck and the tops of your hipbones (learn how to measure your torso length in the fit section of our Hiking Backpacks Guide). In the comparison table above, we have listed the respective torso length(s) which each backpack fits. It is also important to adjust the backpack correctly. Learn how to adjust the backpack in our article How to fit a backpack.

Many expedition backpacks are available in multiple harness sizes, and most in this selection also have an adjustable back length. Others use one adjustable size, so check the stated torso range. This adjustability is especially valuable if you’re between sizes, layering bulky clothing, or sharing the pack between users. A properly fitted pack should place the hip belt squarely on your hips, with shoulder straps wrapping smoothly over your shoulders without gaps or excessive pressure.

Adjustability doesn’t stop at torso length. Look for packs with adjustable sternum straps, load lifters, and hip belt tensioning that can be adjusted precisely. On long expeditions, layers come on and off, the load changes and fatigue can alter how you stand and walk. Being able to readjust the shoulder straps, sternum strap and hipbelt during the day is useful.

For a loaded fitting, position the hipbelt over the tops of your hipbones and tighten it before adjusting the shoulder straps and load lifters. Walk up steps and lift each knee in turn. The belt should stay in place, and the shoulder padding should follow your shoulders without digging in. If your measurement falls between two sizes, try both with the clothing you expect to wear.

Backpanel Design and Ventilation

Because expedition backpacks sit close to your body and carry heavy loads, backpanel design has a major impact on comfort—especially over multiple days. Many expedition packs use ergonomically shaped foam panels with ventilation channels that allow airflow between your back and the pack. Others go a step further with suspended mesh or “trampoline” designs that create a physical gap between your back and the pack body. That gap can improve airflow and help sweat evaporate, although no back-panel design will prevent sweating on a demanding climb.

Back-panel design also affects how close the load sits to your body. Look at ventilation together with frame support and fit, rather than assuming that more mesh always makes a pack better. For expedition use, we would look for enough airflow to manage sweat while keeping the load secure on uneven ground.

Try the pack loaded and pay attention to the lumbar pad when you lean forward as if climbing uphill. A well-ventilated back panel is of little use if its shape creates a pressure point.

Weight and Weight-to-Volume Ratio

Large expedition backpacks usually weigh more than simpler trekking packs because of their frames, padding and extra features. Weight still matters: an extra kilo in the empty pack is an extra kilo to carry all day. Comparing weight with storage capacity can help, but also consider the support needed for your actual load. A large, light bag is not necessarily suitable for the same weight as a heavier, more supportive pack.

The aim is a useful balance between durability, support and weight. Aluminum frames, different fabric weights and removable features can reduce empty weight while retaining support. A lighter pack reduces your total carried load, but saving weight is less useful if the harness does not fit or the frame cannot support your equipment. Read more about why it is important to use lightweight gear for hiking in our article Why hike lightweight.

Extra capacity can also encourage overpacking. Choose enough room for the equipment you need and check whether features such as a daypack lid or ski attachments will be useful on your trips. A simpler pack can make sense if you would otherwise carry those features without using them.

Storage, Organization, and Accessibility

With capacities often exceeding 70 liters, expedition backpacks need more than just a big main compartment. Smart organization makes a huge difference when you’re living out of your pack for days or weeks. Multiple access points such as top-loading openings, side zips, or front panels allow you to reach gear without unpacking everything.

External pockets are equally important. Large front stash pockets are ideal for wet layers, side pockets for water bottles or tent poles, and lid pockets for essentials you want close at hand. Hip belt pockets, while sometimes overlooked on large packs, are incredibly useful for snacks, GPS devices, or a phone.

A rain cover helps shield the outside of the pack, but water can still enter around the harness and openings. Keep your sleeping bag and dry clothing inside a pack liner or suitable dry bags. An outside pocket is useful for a wet tent fly, keeping it away from the equipment you want to keep dry.

Attachment points are another expedition essential. Ice axe loops, trekking pole attachments, compression straps, and gear loops allow you to carry bulky or technical equipment securely. The best expedition backpacks let you adapt the pack to your trip, whether you’re hauling mountaineering gear, winter equipment, or extra supplies for long resupply gaps.

Secure long items such as poles, skis or an axe at more than one point so they cannot swing as you step over obstacles. Check that the attachments are intended for the equipment you plan to carry.

Stability and Load Control

Stability becomes increasingly important as pack size and weight increase. A well-designed expedition backpack should keep the load close to your center of gravity and prevent unwanted sway, especially when scrambling, crossing uneven terrain, or stepping over obstacles.

Compression straps play a key role here. They allow you to cinch down the load as food and fuel are consumed, maintaining balance throughout the trip. Without enough compression, a partly empty bag allows equipment to shift as you walk. Move the remaining supplies closer to your back and tighten the straps as the load shrinks.

Frame shape, pack proportions and the position of heavy items also influence how the load feels. Dense equipment packed high or far from your back can pull you off balance. Test the pack by walking up steps, leaning forward and lifting each knee. Whether a pack stands upright on the ground is a packing convenience, not a reliable test of stability while walking.

Hydration System Compatibility

Staying hydrated on long expeditions is essential, and hydration system compatibility makes this far easier. Most expedition backpacks include an internal sleeve for a hydration bladder and routing ports for the drinking hose. This lets you drink regularly without stopping or removing your pack.

A hydration sleeve helps keep the reservoir in place, but it does not protect it from every sharp edge or pressure point. Check the hanger and hose routing with your own reservoir, and make sure you can remove it for refilling when the pack is full. Some hikers prefer bottles for that reason. Most of these packs support both options through a reservoir sleeve and outside pockets.

For bottles, check whether you can reach a side pocket and return the bottle with the pack on and the compression straps tightened. For a reservoir, check that the hose stays accessible when the chest strap and shoulder straps are adjusted. Sliding a full bladder back into a tightly packed sleeve can take longer than the refill itself. A system that is easy to use makes regular drinking simpler. To learn more about the advantages and disadvantages of hydration systems please read our article Hydration Systems VS. Water Bottles. If you don’t already have a hydration bladder, check out our review of the Best Hydration Bladders.