Key takeaways
- 40–50 liters: A reasonable starting point for an efficient kit, warm conditions, or a trip with reliable resupply.
- 50–60 liters: The versatile range for many multi-day trips, including room for a normal food carry and variable clothing.
- 60–70 liters: Useful for winter insulation, bulky equipment, longer stretches between resupply, or shared group gear.
Best Hiking Backpacks for Backpacking Trips
The best hiking backpacks for backpacking are a well-fitted, load-appropriate pack with a supportive frame: choose roughly 50–60 liters for most multi-day trips, 60–70 liters for bulky or cold-weather gear, and a smaller 40–50-liter pack when your kit is compact. Volume matters, but fit and frame support determine whether that capacity stays comfortable over a long day.
Compare the main backpacking pack choices
These established models illustrate useful differences in capacity, adjustability, and construction. Sizes and listed weights vary by torso size and version, so confirm the specifications for the exact model before buying.
| Pack | Approximate capacity | Approximate weight | Best fit for | Main trade-off |
|---|---|---|---|---|
| Osprey Atmos AG 65 | 65 L | About 4.5 lb | Hikers carrying a substantial load who value ventilation and a suspended-feeling harness | More weight and structure than a minimalist pack |
| Gregory Baltoro 65 | 65 L | About 4.7 lb | Heavy loads and hikers who want a highly supportive, adjustable suspension | Bulky and comparatively heavy when your gear is light |
| REI Co-op Flash 55 | 55 L | About 2.6 lb | Compact kits and hikers trying to reduce pack weight | Less margin for bulky gear or heavy loads than a larger framed pack |
| Granite Gear Crown3 60 | 60 L | About 2.6 lb | Weight-conscious trips with a moderate, well-organized load | Lightweight construction asks you to pack carefully and stay within its comfortable load range |
Weights are rounded reference figures, not guarantees for every size or configuration. Removable lids, pockets, and other components can change the weight you carry.
Choose capacity from your gear, not the trip length alone
A weekend trip does not automatically call for a small pack. A compact quilt, tent, and stove can fit in less space than a bulky sleeping bag and cold-weather layers, even on the same number of nights. If possible, pack your actual sleeping system, shelter, food, and clothing before choosing a volume.
- 40–50 liters: A reasonable starting point for an efficient kit, warm conditions, or a trip with reliable resupply.
- 50–60 liters: The versatile range for many multi-day trips, including room for a normal food carry and variable clothing.
- 60–70 liters: Useful for winter insulation, bulky equipment, longer stretches between resupply, or shared group gear.
Buying extra capacity “just in case” can encourage overpacking and leave loose space that makes a load harder to stabilize. On the other hand, a pack that only fits when every item is compressed may leave no room for food or wet-weather layers.
Match the frame to your loaded weight
Frame support matters most when the pack is heavy. A frame transfers much of the load to the hip belt, reducing the strain on your shoulders. A more substantial suspension can be worth its extra weight if you carry a large food load, water, or bulky gear. Lightweight framed packs suit hikers with compact kits and moderate loads; frameless designs are generally best reserved for experienced users carrying light, carefully packed loads.
Do not treat a manufacturer’s maximum load rating as a comfort promise. Pack shape, torso length, belt fit, and how close heavy items sit to your back all affect how a load feels. If your usual trips involve a heavy carry, try a fully framed pack with weight in it rather than judging it empty.
Get the fit right before comparing features
Backpack sizing is based on torso length, not overall height. Measure from the prominent bone at the base of your neck to the point level with the top of your hip bones, then compare that measurement with the manufacturer’s size chart. If you fall between sizes, adjustable torso systems can help, but they cannot compensate for a hip belt that does not match your body.
- Set the hip belt first: Position it over the top of your hip bones and tighten it so the belt carries the load without pinching.
- Adjust the shoulder straps: They should follow your shoulders without a gap, but should not bear most of the pack’s weight.
- Set the load lifters: These straps should angle upward from the shoulder straps toward the pack. Tighten them enough to bring the load closer, not so much that they pull the shoulder straps off your shoulders.
- Check the sternum strap: Use it to keep the shoulder straps comfortably positioned; avoid pulling it tight enough to restrict breathing.
Try the pack with weight and walk around for several minutes. A correct fit should feel stable, with the belt carrying most of the load and no sharp pressure at the shoulders, hips, or lower back. Adjustments can fine-tune a good match, but persistent pressure points usually call for a different size or harness shape.
Decide how much weather protection you need
Most backpacking packs use water-resistant fabric, not fully waterproof construction. Rain can enter through seams, zippers, or the opening even when the fabric itself sheds water. A rain cover helps in steady rain, but wind can shift it, and water may still reach gear through the back panel or uncovered areas.
For dependable protection, line the main compartment with a waterproof pack liner or a large waterproof bag, then keep critical items such as a sleeping bag and spare insulation in individual dry bags. This adds a small amount of packing effort but protects gear even if a cover is lost or water enters elsewhere. A cover is most useful for protecting exposed pockets and reducing water soaking into the outer fabric.
Use this decision matrix to narrow the choice
| Your situation | Pack direction | Why |
|---|---|---|
| Compact gear and a moderate load | About 50–60 L, lightweight framed design | Provides useful capacity without paying a weight penalty for an oversized suspension. |
| Heavy food, water, or group equipment | About 60–70 L, supportive adjustable frame | More space and a stronger load transfer can improve stability and comfort. |
| Cold weather or bulky sleeping gear | About 60–70 L, depending on packed gear | Insulation and additional layers take up space; confirm fit with the full kit. |
| Frequent rain or wet trail conditions | Any suitable volume, plus a liner or dry bags | Pack fabric and rain covers alone cannot reliably keep the contents dry. |
Calculate the space you actually need
Use a simple packing check rather than guessing from a product’s advertised volume. Suppose your shelter, sleeping system, and clothing occupy about 35 liters when packed. Add roughly 8 liters for food and cooking gear, 3 liters for a first-aid kit and small essentials, and 4 liters for water carried in the pack: that is about 50 liters of contents before leaving room for irregular shapes and access. A 55-liter pack may work if the gear packs neatly; a 60-liter model offers more flexibility. If the sleeping bag is bulky or the trip includes cold-weather layers, repeat the check with those items included rather than assuming the same pack will fit.
Keep dense items, such as food and a bear canister when required, close to your back and centered. This helps the pack feel less like it is pulling backward. Put items you need during the day in accessible pockets, but avoid filling every outer pocket with heavy objects that swing as you walk.
Bottom line
For many hikers, a 50–60-liter framed backpack is the most adaptable starting point. Choose a 60–70-liter pack when your gear is bulky or your loads are heavy, and consider a lighter 40–50-liter option only if your packed kit fits with room for food and weather layers. Prioritize a measured torso fit, a hip belt that carries the load comfortably, and a weather-protection plan that does not rely on the pack fabric alone.
