small medium large
Weight 2 lb 13 oz / 1.27 kg 2 lb 14 oz / 1.30 kg 2 lb 15 oz / 1.33 kg
Stripped weight 2 lb 0 oz / .91 kg 2 lb 1 oz / .93 kg 2 lb 2 oz / .95 kg
Capacity 2100 cu in / 35 L 2300 cu in / 38 L 2450 cu in / 41 L

Where to Buy

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Manufacturer's Description

Visit Osprey's Mutant 38 page.

Retailers' Descriptions

Here's what other sites are saying:

The Osprey Mutant 38 Pack is a Climbing pack for alpine and ice climbs as well as ski mountaineering. The 38 is the largest of the series, yet still pAred down for fast and lightweight adventures into the Snowy mountains. The panel-load pack is ready to be stuffed with only the necessities and Features a removable top pocket to cut weight even more. The helmet carrying system and side compression is also removable, or keep them on so you can tack on any extras. The pack can carry skis in an A-frame as well as two ice axes. Features of the Osprey Mutant 38 Pack Integrated FlapJacket closure system Removable helmet carry system Removable side compression A-frame ski carry Harness Hydration Removable top pocket Reverse wrap Hybrid hipbelt Suspension/Backpanel

- Moosejaw

Designed with fast and light alpine climbing, ice climbing, and ski mountaineering in mind, the Osprey Mutant 38 is ideal for any vertical sport enthusiast looking for a pack that's lightweight, streamlined, and can be customized to meet their specific needs. . Reinforced HDPE framesheet and aluminum stay provide structure and support under heavy loads; both can be removed to reduce pack weight. Reverse spacer mesh Airscape back panel offers lightweight, breathable comfort. Reverse spacer mesh harness features webbing attachment points, reservoir hose routing, and an adjustable sternum strap with whistle. Padded EVA hip belt has wings with gear loops and attachment points; reverse wrap design lets you wrap the padding out of the way (leaving a low-profile webbing hip belt) when wearing a climbing harness. Dual-compartment lid stashes smaller gear for quick access and is completely removable to reduce pack weight. Integrated FlapJacket provides weather protection when pack is being used without the lid. Zippered pocket on top of the pack stows a removable stretch mesh attachment for convenient helmet carry. Dual ToolLock attachment system threads into the head of your ice axe while bungee tie-offs keep the shaft secure. Front panel webbing loops provide easy crampon attachment. Reinforced A-frame ski loops keep your skis secure while hiking. One-piece 15 mm side compression straps are removable to reduce pack weight. All zipper pulls and buckles are glove-friendly. 50 l


Compact headlamp for proximity lighting and some movement. 200 lumens Simple and compact, the TIKKA headlamp offers 200 lumen brightness and a wide beam. With its long burn time, it is practical for outdoor activities like camping or trekking, or for traveling, and also for daily activities and projects around the house. The phosphorescent reflector helps you find it in the dark, and the red lighting prevents members of a group from blinding each other. TIKKA is a HYBRID headlamp that is also compatible with the CORE rechargeable battery.

- Bentgate.com

High on a ridgeline, winds swirling around your perch, the stability of your pack and gear is of paramount importance--that's why a pack like the Osprey Mutant 38 Backpack is so important. Support and stability come in the form of a removable HDPE framesheet, a removable aluminum stay, and an AirScape back panel that also ventilates as you climb. This top-loading pack features a removable floating top lid to lighten your load for summit day. When removed, you can protect and secure your gear with the FlapJacket closure system. To help you haul everything you need, Osprey added its Mutant Dual ToolLock ice-tool system that lets you securely carry, and remove, tools when needed. Side compression straps let you secure your load if it's not quite full, and the A-frame ski carry makes sure that you can get down off the top the fun way. To help keep you from overheating on the way up you can store your helmet in the removable helmet-carry system up top.

- Backcountry.com