Osprey Mutant 38


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

Manufacturer's Description

Visit Osprey's Mutant 38 page.

Retailers' Descriptions

Here's what other sites are saying:

Free Shipping. Osprey Mutant 38 Pack FEATURES of the Osprey Mutant 38 Pack Quick-release upper side compression Removable one piece 15mm side compression straps Reinforced A-frame ski loops Removable helmet carry Glove friendly zipper pulls Dual ToolLocks with bungee tool tie-offs Front panel webbing loops for crampon attachment Removable dual compartment top lid Integrated Flap Jacket for weather protected lidless use Reverse wrap hipbelt padding wings with gear loop and attachment points Removable aluminum stay and 1.2 mm HDPE framesheet Smooth breathable surface over ventilated ridged foam Webbing attachment points and reservoir hose routing Adjustable sternum strap with whistle Reverse wrap hipbelt padding wings with gear loop and attachment points SPECIFICATIONS of the Osprey Mutant 38 Pack 210D nylon dobby 210D triple rip nylon SPECIFICATIONS for S/M Volume: 2136 cubic inches / 35 liter Weight: 2 lbs 7 oz / 1.11 kg Stripped Weight: 1 lb 10 oz / 0.73 kg Dimension: (H x W x D): 25 x 11 x 10in. / 63 x 27 x 25 cm SPECIFICATIONS for M/L Volume: 2319 cubic inches / 38 liter Weight: 2 lbs 10 oz / 1.19 kg Stripped Weight: 1 lb 13 oz / 0.81 kg Dimension: (H x W x D): 25 x 11 x 10in. / 63 x 27 x 25 cm This product can only be shipped within the United States. Please don't hate us.

- Moosejaw

Designed for fast-and-light alpine climbing, ice climbing and ski mountaineering, the Mutant 38 is perfect for vertical enthusiasts who are looking for a streamlined, lightweight pack.


The Osprey Mutant 38 Pack is a top loading bucket style lightweight pack designed specifically for the alpine climbing/ice climbing minimalist. The Mutant 28 has a fixed, reverse spacer mesh die-cut foam harness is designed specifically with stability, carry and comfort in mind. An adjustable sternum strap with rescue whistle buckle provides proper torsional stability while reservoir hose routers keep hydration accessible and at the ready

- CampSaver.com

The Osprey Mutant 38 Backpack is a minimalist alpine climbing/ice climbing pack that's perfect for those days in the ice park as well as the one day alpine climbs.-- Removable helmet carry system-- Removable side compression-- A-frame ski carry-- Harness-- Hydration-- Reverse wrap hybrid hipbelt-- Rope compression-- Suspension/Backpanel-- Tool carry-- Zippered top access

- OMCgear