Osprey
Exos 38
Best ultralight pack for long-distance thru-hikers seeking maximum ventilation.
The Osprey Exos 38 is an ultralight, stable, and comfortable backpack designed for backpackers seeking a carry option with significant capacity. Constructed with 100% recycled materials, it's ideal for demanding trips where resupply opportunities are scarce. Experienced backpackers will appreciate its market-leading comfort and ventilation without the added weight, making it perfect for thru-hiking and ultralight backpacking on trails like the AT or the Colorado Trail. For even lighter loads, remove the top lid and use the integrated FlapJacket cover to protect your gear. The refined AirSpeed suspension system keeps you cool by maximizing airflow between you and the pack.
$245.00
Owner Satisfaction
4.6
/ 5
Category Rank
1886
/ 13466
#1886 in Backpacks
Price vs Category Average
+130%
Above average
Load Range
2025911
/ - lbs / - kilos
Who it's for
- Hikers prone to overheating on strenuous summer trails
- Fast-and-light backpackers prioritizing speed and minimal weight
- Long-distance trekkers needing comfort for moderate gear loads
Who should skip it
- Hikers who rely on extra pockets and included accessories
- Backpackers carrying heavy gear or bulky expedition supplies
- Rough-terrain explorers needing maximum fabric abrasion resistance
Performance breakdown
Ventilation efficiency
AirSpeed suspension creates a significant gap for maximum cooling airflow.
Weight-to-capacity ratio
Ultralight construction provides ample volume without sacrificing essential structural integrity.
Load stability
Excels with lighter loads but loses composure near maximum weight limits.
Versatility
Removable lid and compression straps adapt easily to varying trip requirements.
Trail accessibility
Thoughtful pocket placement and pole attachments keep gear within easy reach.
Material durability
High-tenacity nylon balances weight savings with necessary resistance to trail abrasion.
Key Specs
Load Range
20 - 25 lbs / 9 - 11 kilos
Volume
38 L
Dimensions
29.53H X 12.99W X 11.81D IN.
Weight
2.695 lbs.
Material
bluesign® approved recycled 100D high tenacity nylon ripstop, PFC/PFAS-free DWR (Main)
Material
bluesign® approved recycled 400D high tenacity nylon, PFC/PFAS-free DWR (Accent)
Material
bluesign® approved recycled 100D high tenacity nylon ripstop, PFC/PFAS-free DWR (Bottom)
Hip Belt
ExoForm Hipbelt with zippered pockets
Features
- Removable top lid with zippered upper and lower pockets
- Integrated FlapJacket cover for lidless use
- Stow-on-the-Go trekking pole attachment
- Dual-access stretch mesh side pockets
- Removable dual compression straps
- Removable sleeping pad straps
- Dual ice axe loops with bungee tie-offs
- Adjustable AirSpeed suspension for torso length
What customers say
Customers consistently laud the Osprey Exos 38 for its outstanding comfort and thoughtful design. The pack's lightweight construction and advanced ventilation system are frequently highlighted, making it a favorite for extended treks where minimizing sweat and strain is crucial. Users appreciate how these features contribute to a more enjoyable hiking experience. Furthermore, the product's perceived quality and durability reinforce a strong sense of reliability, solidifying its reputation among outdoor enthusiasts.
Know before you buy
The Exos 38 is designed for ultralight setups, performing best with a total load between 20 and 25 pounds. Exceeding this weight may compromise the comfort of the suspension system.
Yes, the top lid is fully removable. You can use the integrated FlapJacket cover to secure the main compartment and protect your gear when you want to shed extra weight or reduce the pack's profile.
The AirSpeed suspension creates a tensioned mesh back panel that keeps the pack body off your back, significantly increasing airflow. Because the frame is curved to facilitate this ventilation, it is important to adjust the torso length properly to ensure the hip belt sits correctly on your iliac crest.
While it features dual ice axe loops and bungee tie-offs, it is primarily designed as an ultralight thru-hiking pack. It lacks the heavy-duty abrasion resistance and volume required for bulky winter gear, so it is best suited for three-season backpacking.
Yes, the pack includes an internal hydration sleeve located against the back panel, along with a center-back hose port for easy routing of your hydration tube.
Yes, both the dual compression straps and the sleeping pad straps are removable. This allows you to strip the pack down to its bare essentials if you are looking to save every possible ounce.
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$245