The Osprey Mutant 38 backpack is designed for demanding alpine conditions, multi-pitch climbing and movement on steep terrain and ice, where safety and stability decide everything. Thanks to its slim, body-hugging profile and well-thought-out carry system, it offers maximum control even in the most extreme situations.
The latest iteration of the Mutant 38 brings improved materials, including lightweight recycled NanoFly and Robic fabrics, which ensure exceptional durability with a lower environmental impact compared to virgin materials. The pack was developed and tested in collaboration with local guides and athletes in real extreme conditions, so every detail is proven in practice.
- Top-level alpine features
The pack is equipped with dual ToolLock attachments with bungee retention for secure ice axe carry, a Snowshed back panel system that repels snow, and glove-friendly buckles, so all key elements work reliably even in arctic temperatures and in situations where every second counts. - Safe and stable load transfer
The pack’s slim, close-to-body profile, combined with an Atilon frame sheet, dual aluminium stays and shaped EVA foam on the back panel and shoulder harness, ensures efficient, balanced load transfer that significantly contributes to safer movement in the mountains.
- Removable webbing gear attachments
- Daisy chain loops on the front panel
- Three-point haul system
- Dual ToolLock attachments with bungee
- Internal hydration reservoir sleeve
- Removable zipped top pocket
- Removable helmet carry net
- Reinforced A-frame ski carry
- Compression straps for a rolled rope
- Hip loops for ice gear
- Reverse-wrap hipbelt
- Removable Atilon frame sheet, two aluminium stays
- Quick-release upper and lower compression straps
Specifications:
Volume: 38 litres
Weight: 1140 g
Dimensions: 63 × 30 × 26 cm
Back system: Atilon frame sheet with dual aluminium stays
Back panel: Snowshed fabric, shaped EVA foam
Harness: Stretch woven mesh over EVA foam
Material: Lightweight recycled NanoFly and Robic fabrics
Buckles: Lightweight, glove-friendly
Accessories: FlapJacket and storage pocket in one
The goods are in the following categories:
ski and skialp backpacks Ski Backpacks Climbing backpacks OSPREY all
We offer more than 500 innovative, high-performance Osprey backpacks that reflect a love of adventure and dedication to the outdoors. Osprey backpacks for any adventure and season, we have in stock with free shipping.
The American company Osprey focuses exclusively on the production of backpacks, which is strongly reflected in their high quality, design and technical details and improvements (e.g. Custom Molding System - heat moldable waist belt). In the OSPREY range you will find backpacks designed for several days of demanding treks in the wilderness, as well as a perfectly refined series of backpacks for cycling and for rock climbing fans, and it does not forget about small travellers with a range of technical children's backpacks. Osprey backpacks have won awards from prestigious outdoor magazines such as Backpacker Magazine, Outside Magazine.
Choosing the Right Size for Your OSPREY Backpack
Most OSPREY backpacks are equipped with an adjustable back system that can be lengthened or shortened by up to 10 cm. In addition, there are also standard sizes:
- S/M (M; MD) – for people up to approximately 178 cm.
- M/L (L; LG; L/XL) – for people taller than 178 cm.
New size labels
Some men's backpacks are available in size L/XL. This corresponds to the standard size M/L (L; LG) and is also intended for users taller than 178 cm.
Special models
- EXOS, LEVITY – also available in size S (SM), suitable for shorter men, juniors, and women (approx. 160–170 cm).
Women's Backpacks
Attention! Some women's backpacks are available in two sizes of the back system:
- WS (WXS/WS; XS/S) – for women up to approx. 168 cm.
- WM (WM/WL) – for women taller than 168 cm.
- WL – for women's running backpacks, designed for people approximately 173 cm and taller.
| Back size | 40.5 cm | 43cm | 46cm | 48cm | 51cm | 53cm | 56-58.5cm | 61-63.5cm |
| Aether Pro | S | S | S or M | S or M | M or L | M or L | L | - |
| Aether AG™ | S | S | S or M | S or M | M or L | M or L | L | - |
| Aether AG™ 70 | S | S | S or M | S or M | M or L | M or L | Large or Extra Large | XL |
| Aether (before 2021) | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Aether/Aether Pls (after 2020) | - | S/M | S/M | S/M or L/XL | S/M or L/XL | S/M or L/XL | L/XL | - |
| Aether Extended Fit | - | S/M | S/M | S/M | S/M OR L/XL | S/M OR L/XL | S/M OR L/XL | - |
| Archeon 70/45 | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Atmos AG™ (2018-2021) | S | S | S or M | S or M | M or L | M or L | L | - |
| Atmos LT | S | S/M | S/M | S/M OR L/XL | S/M OR L/XL | S/M OR L/XL | L/XL | - |
| Atmos AG™ (2022-current) | - | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Exos (before 2023) | S | S | S or M | S or M | M or L | M or L | L | - |
| Exos (2022-current) | - | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Exos Pro | - | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Kestrel | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Levity | S | S | S or M | S or M | M or L | M or L | L | - |
| Talon Extended Fit | - | S/M | S/M | S/M | S/M | XS/S or M/L | M/L | - |
| Talon/Pro | S/M | S/M | S/M | S/M or L/XL | L/XL | L/XL | L/XL | - |
| Osprey UNLTD Airscape | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Osprey UNLTD AntiGravity | S/M | S/M | S/M | S/M or L/XL | S/M or L/XL | L/XL | L/XL | - |
| Zenith | - | - | M | M | M or L | M or L | Large or Extra Large | XL |
| Duro | S/M | S/M | S/M or M/L | S/M or M/L | M/L | M/L | - | - |
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