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Osprey Exos 38 Litre Ultralight Overnight Backpack


Sale price $219.95 Regular price $279.95

Tax included.

The smallest of the newly updated Osprey Exos Series, the Osprey Exos 38 Litre Ultralight Backpack excels at overnight and weekend trips for those who enjoy going light. The incredible AirSpeed suspension's breathable 3-D mesh backpanel provides unmatched ventilation and comfort, and trail-friendly features like Stow-on-the-Go trekking pole carry combine with strippable features to create the comfortable pack for short, lightweight trips. Osprey's All Mighty Guarantee means you can rest assured your covered if anything happens on the trail. Stripped weight - 2.19lbs, 1.00kg.


  1. Removable floating lid with top-and under-lid zippered pockets for storing smaller items
  2. Integrated FlapJacket protects packed gear when top lid is removed
    Stow-on-the-Go trekking pole attachment allows you to stow your poles in steep terrain or whenever you need your hands free
  3. Dual access stretch mesh side pockets for storing water bottles and other gear with InsideOut side compression straps
  4. Front stretch mesh pocket stores rain gear for easy access when skies darken, or wet gear after the downpour stops
  5. Top lid web loop attachment points for external gear storage
  6. Ice axe attachment with bungee tie-off
  7. Removable sleeping pad and side compression straps
  8. Accessory cord attachment points for external gear storage
  9. Sternum strap with integrated safety whistle

Key Attributes

Ultralight design and materials plus the ability to strip weight by removing sleeping pad straps, compression straps and the top lid.

Airspeed Suspension
Tensioned backpanel keeps the weight in the pack off of your back, enabling highly ventilated carrying comfort.

Ditch the removable floating lid and replace with the fixedFlapJacket to protect your gear from the elements and minimize weight.</li>

Carry Information

Ultralight Airspeed Suspension

  • 4mm( Lightwire) alloy frame
  • 3D-tensioned breathable mesh backpanel with side ventilation

Exoform Harness

  • Seamless layered mesh provides improved comfort and cushioning
  • 15 mm adjustable slide sternum strap
  • Stretch mesh energy-gel pocket

Exoform Hipbelt

  • ErgoPull™ closure
  • Seamless layered mesh provides improved comfort and cushioning


Load Range™
The green to yellow zones represent the recommended load range for this pack.

7-13 kgs

Volumes and Weights

US and International weight and volume specifications

Size cu. in. liter lbs/oz kg.
S 2136 35 2.46 1.12
M 2319 38 2.48 1.13
L 2502 41 2.51 1.14


Size Height Width Depth
Small (cm) 69cm 40cm 30cm
Small (inches) 27.17 IN 15.75IN 11.8IN
Medium (cm) 74cm 40cm 30cm
Medium (inches) 29.13IN 15.75IN 11.81IN
Large (cm) 79cm 40cm 30cm
Large (inches 31.1 IN 15.75IN 11.81IN
Key Fabrics used:
  • Main:100D High Tenacity Nylon
  • Accent:100D High Tenacity Nylon Triple Check Dobby
  • Bottom: 210D High Tenacity Nylon

Sizing and Fitting of your Osprey Pack

Fit is the key to pack performance. Take the time to get it right. Most Osprey packs are available in multiple sizes to fit a range of torso lengths. To find your torso length, have a friend measure your back along the spine (as shown in the picture below) from the level of your iliac crest (the top of your hipbones) to your C7 (the knobby bone at the base of your neck).
Use the table below to determine your pack size.
Exos 38 Litre Backpack Small Medium Large
Back Length 16-19"/40.5-48cm 18-21"/46-53cm 20-23"/51-58.5cm