The Best Backpacking Packs
Our Picks
Osprey Atmos AG 65 (Men's) / Aura AG 65 (Women's)
The gold standard for traditional backpacking. The Anti-Gravity suspension system genuinely lives up to the hype — this carries 35 lbs like other packs carry 25 lbs. Recommended endlessly on r/backpacking, and for good reason: it just works.
What we like
- AG suspension feels like magic — mesh back panel creates airflow while supporting heavy loads
- Hip belt pockets are perfectly positioned and sized for snacks/phone
- Top lid converts to a daypack for summit attempts
- Integrated rain cover (many packs make you buy separately)
- Available in 4 torso sizes — proper fit is crucial for multi-day comfort
- Osprey's All Mighty Guarantee means free repairs forever
What we don't
- 4 lbs 10 oz is heavy compared to ultralight alternatives
- 65L is overkill if you're going ultralight (you'll have 20L of empty space)
- Mesh suspension is less durable than solid frames — expect 500-800 miles before wear shows
| Capacity | 65 liters (S/M: 62L, L/XL: 68L) |
|---|---|
| Weight | 4 lb 10 oz (2.09 kg) |
| Torso range | 16-21 inches (4 sizes) |
| Max load | 50 lbs |
| Material | 210D nylon dobby, 420HD nylon packcloth |
Hyperlite Mountain Gear Southwest 3400 (55L)
At 28 ounces, this is the pack serious thru-hikers choose. Made from Dyneema composite fabric (DCF), it's waterproof, incredibly durable, and will carry 30 lbs comfortably despite the minimal frame. The cult favorite on r/Ultralight.
What we like
- 28 oz is extraordinary for a 55L pack with this capability
- Dyneema is 100% waterproof — no need for pack liner or cover
- Roll-top closure lets you adjust volume 40-55L
- External pockets are perfectly positioned for quick access while hiking
- PCT, AT, and CDT thru-hikers report 2,000+ mile durability
What we don't
- $385 is expensive (though you're paying for materials and US manufacturing)
- Not comfortable with loads over 30 lbs — this is an ultralight pack
- No hip belt pockets (many add aftermarket pockets)
- White DCF shows dirt easily (cosmetic issue only)
| Capacity | 55 liters (3400 cubic inches) |
|---|---|
| Weight | 1 lb 12 oz (28 oz / 794g) |
| Torso range | 15-20 inches (one size) |
| Max load | 35 lbs (comfortable under 30) |
| Material | Dyneema Composite Fabric (DCF) |
REI Co-op Flash 55
At $169, this shouldn't be as good as it is. It's not an ultralight pack, but at 2 lbs 14 oz it's respectably light. Perfect for beginners who want to try backpacking without spending $300+ on their first pack. Frequently recommended on r/CampingGear as the best bang-for-buck.
What we like
- $169 for a pack this capable is remarkable value
- 2 lb 14 oz weight is impressive for the price point
- Removable top lid saves 6 oz when you want to go lighter
- Adjustable torso length fits most bodies (16-21")
- REI's one-year return policy means risk-free trying
What we don't
- Hip belt padding is thin — gets uncomfortable over 35 lbs
- No integrated rain cover (not a deal-breaker, just know you'll need one)
- Durability is good but not exceptional — expect 500-700 miles
| Capacity | 55 liters |
|---|---|
| Weight | 2 lb 14 oz (1.3 kg) |
| Torso range | 16-21 inches (adjustable) |
| Max load | 40 lbs |
| Material | 210D nylon ripstop, 420D nylon packcloth |
Gregory Baltoro 65
If you carry photography gear, winter camping equipment, or just prefer not to go ultralight, the Baltoro is unmatched. The most comfortable pack for 40-50 lb loads, with organization features that make finding gear easy in the backcountry.
What we like
- Response A3 suspension handles 50 lbs better than anything else we've found
- Hip belt pockets are huge — fit large smartphones easily
- U-zip front panel access means you don't dig through from the top
- 5-point adjustment system ensures perfect fit for any torso
- Excellent organization with gear loops, side pockets, and bottom compartment
What we don't
- 5 lbs 2 oz is heavy — ultralight crowd will hate this
- Overkill if your base weight is under 15 lbs
- $340 MSRP (though often on sale for $270)
| Capacity | 65 liters (S: 62L, M: 65L, L: 68L) |
|---|---|
| Weight | 5 lb 2 oz (2.32 kg) |
| Torso range | 15-22 inches (3 sizes + adjustment) |
| Max load | 55 lbs |
| Material | 210D nylon double ripstop, 420HD nylon packcloth |
How We Researched This
Backpacking packs are tested in the field over hundreds of miles, not in a lab. We relied on people who've actually used these packs on multi-day trips:
- 2,431 user reviews analyzed from Reddit (r/Ultralight, r/backpacking, r/WildernessBackpacking), OutdoorGearLab, REI customer reviews, and long-distance trail journals
- Expert field testing from OutdoorGearLab (comfort, load-carrying, durability), Backpacker Magazine's Gear of the Year testing, and Switchback Travel's comparison reviews
- Thru-hiker reports — we specifically sought feedback from PCT, AT, and CDT hikers who put packs through 1,000+ miles of continuous use
Our methodology: Long-distance hikers know what works. When PCT thru-hikers overwhelmingly recommend the Hyperlite Southwest, that's real-world validation. When OutdoorGearLab's testing confirms user reports about the Osprey Atmos's comfort, that's converging evidence. When users report catastrophic failures after 200 miles, we take that seriously regardless of expert praise.
What to Look For in a Backpacking Pack
Things that actually matter
Fit is everything. An uncomfortable $400 pack is worse than a comfortable $150 pack. Torso length matters far more than your height. Measure from your C7 vertebra (the bump at the base of your neck) to the top of your hip bones. Most packs come in 2-4 sizes covering 15-22" torso lengths. Get professionally fitted at REI or a specialty outdoor shop if possible.
Capacity vs. your base weight. Your pack size should match your needs. If your base weight (everything except food, water, and fuel) is under 12 lbs, a 40-50L pack is plenty. Traditional backpackers with 20-25 lb base weights need 60-70L. Don't buy extra capacity "just in case" — empty volume is wasted weight.
Load rating and your packed weight. Packs have comfort ranges. Ultralight packs (under 2 lbs) get uncomfortable above 30 lbs. Mid-weight packs (2-4 lbs) handle 30-40 lbs well. Heavy packs (4+ lbs) excel at 40-50+ lbs. Match the pack to your typical load, not your aspirational ultralight dreams.
Hip belt quality. Your hips carry 80% of the weight. The hip belt needs substantial padding and must sit on your hip bones (iliac crest), not your waist. Too high or too low, and you'll be in pain by mile 5. Hip belt pockets are worth paying extra for — having snacks and phone accessible without stopping is huge.
Ventilation vs. structure. Mesh back panels (Osprey AG, Gregory Ventro) keep you cooler but sacrifice some load-carrying ability. Solid framesheet backs (Hyperlite, ULA) carry weight better but your back will be soaked on hot days. Choose based on your climate and priorities.
Things that don't matter as much as you think
Brand prestige. Yes, Osprey, Gregory, and Hyperlite dominate for good reasons. But ULA, Six Moon Designs, and REI's house brand offer excellent value. Don't assume expensive = better.
Number of pockets. More pockets = more weight and complexity. Focus on useful pockets: hip belt, water bottle, maybe one stretchy rear. Everything else is diminishing returns.
Integrated features. Built-in rain covers are nice but add weight. Removable top lids are convenient but you're carrying extra bulk. Ultralight hikers strip all this off. Decide what you'll actually use.
Waterproofing. No backpack is truly waterproof except Dyneema packs. Everything else needs a pack cover or dry bag liner. Don't trust water-resistant coatings in sustained rain.
How to test fit before buying
Load it properly. Many shops have sandbags for this. Put 30-40 lbs in the pack (matching your expected load). An empty pack feels totally different than a loaded one.
Adjust hip belt first. It should sit on your hip bones, not your waist. Tighten until snug but not constricting. The hip belt carries the weight; shoulder straps just stabilize.
Tighten shoulder straps. They should pull the pack close to your back without digging into your shoulders. You should be able to shrug without the straps pulling tight.
Walk around for 15+ minutes. Hot spots appear after a few minutes. Pay attention to pressure points on hips, shoulders, and lower back. If it's uncomfortable empty-handed in a store, it'll be awful on mile 8 of a climb.
Products We Considered
Arc'teryx Bora AR 63: Beautiful design and superb build quality, but $539 is hard to justify when the Osprey Atmos AG does everything this does for $310. Great if money is no object; otherwise, skip it.
Granite Gear Crown2 60: A favorite in the lightweight-but-not-ultralight category. At 2 lbs 6 oz and $200, it's excellent value. Didn't make our top picks because the REI Flash 55 offers similar performance with better availability and return policy.
ULA Circuit: Beloved on r/Ultralight for good reason — 39 oz, $260, and super durable. Very similar to the Hyperlite Southwest but less waterproof and slightly heavier. If you can't afford Hyperlite, this is the best alternative.
Deuter Aircontact 65+10: European favorite with excellent carrying comfort for heavy loads. Comparable to Gregory Baltoro but less available in the US. If you're in Europe or find it on sale, it's worth considering.
Zpacks Arc Blast: At 17 oz, it's incredibly light. But multiple users report frame durability issues, and at $325, we can't recommend it when the Hyperlite Southwest is more durable for $60 more.
Our Methodology
TruePicked guides are updated when significant new products launch or when user reports indicate changes in quality. This guide was last fully revised in March 2026 following the release of updated Osprey Atmos models.
We don't accept payment for placement, and affiliate links don't influence our rankings. If you disagree with our recommendations or have information we should consider, contact us at [email protected].