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Osprey

Osprey Mutant 38L backpack

Price without code 139.99

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Features of Osprey Mutant 38L

Product description of Osprey Mutant 38L backpack

Description summary

Conquer vertical ice and steep terrain with the Osprey Mutant 38L backpack. Engineered for demanding alpine adventures and multi-pitch ascents, its close-to-body fit ensures stability in extreme conditions. Developed with guides and athletes, this refined pack features advanced recycled fabrics for durability and a lower environmental impact. Boasting a wealth of features like snowshed backpanel, dual ToolLocks, reinforced ski carry, and a removable helmet net, the Mutant 38 is your ultimate partner for vertical challenges

Whether mountaineering in demanding alpine conditions or spending long days conquering multi-pitch ascents, the Mutant 38 is fine-tuned for vertical ice and steep terrain.

Developed with the help of local guides and athletes and honed over years of abuse in extreme conditions, its close-to-body fit and refined feature-set promotes safety and stability in even the worst of conditions.

New colors, advanced fabrics and refined features make the latest iteration of Mutant 38 even more formidable than its predecessor, proving that the evolution isn´t done yet.

The whole Mutant family benefits from the addition of lightweight, recycled NanoFly™ and robic fabrics for impressive durability and lower environmental impact than virgin materials.

Features:

Removable webbing gear attachment straps.

Front panel daisy chain loops, compatible with Voile straps.

Three-point haul system.

Snowshed fabric backpanel.

Dual ToolLocks with bungee tie-offs.

Internal hydration sleeve.

Lightweight, glove friendly buckles.

Rope attachment/internal compression.

Removable top lid with zip pocket.

FlapJacket and stowaway pocket.

Removable, multi-position helmet carry net.

Reinforced A-frame ski carry.

Quick release upper and lower compression straps.

Dual hipbelt gear loops and ice gear carry loops.

Reverse-wrap hipbelt.

Removable Atilon framesheet, dual aluminum stays.

Technical specifications:

LOAD RANGE 5.

- 13 kg.

S/M.

VOLUME:

2197 IN 3 / 36 L.

DIMENSIONS:

26H X 30W X 63D CM.

WEIGHT 1.141 KG.

M/L.

VOLUME:

2319 IN 3 / 38 L.

DIMENSIONS:

26H X 30W X 68D CM.

WEIGHT 1.221 KG.

Composition:

MAIN:

bluesign® APPROVED, 100% recycled 210D high-tenacity nylon, DWR treatment made without PFAS.

LINING.

bluesign® APPROVED, 100% recycled 210D nylon, DWR treatment made without PFAS.

BOTTOM.

bluesign® APPROVED, 100% recycled 420D nylon.

WARNING:

This product can expose you to chemicals including dimethylformamide, which is known to the State of California to cause cancer.


Specifications

Manual

Technical specifications of Osprey Mutant 38L

  • Back panel ventilation

    Snowshed Fabric

  • Rain cover included

    No

  • Hydration system compatible

    Yes

  • Hip belt pockets

    Yes

  • Color

    Green

  • Capacity

    31-40 L

  • Gender

    Men

  • Gender

    Women

  • Age

    Adult

  • Recommended Use

    Hiking

  • Structure

    Frameless

Features of Osprey Mutant 38L

Color Green

Color

Green

Capacity 31-40 L

Capacity

31-40 L

Gender Men

Gender

Men

Women

Women

Age Adult

Age

Adult

Recommended Use Hiking

Recommended Use

Hiking

Structure Frameless

Structure

Frameless

Key differentiators

Constructed with bluesign® APPROVED, 100% recycled high-tenacity nylon fabrics for durability and a lower environmental impact.

Designed for a close-to-body fit to ensure stability during dynamic movements on steep terrain.

Developed for alpine and ice climbing with features like dual ToolLocks, a three-point haul system, and reinforced A-frame ski carry.

Features a snowshed fabric backpanel to prevent snow buildup and maintain comfort.

Highly customizable with removable components including the top lid, helmet net, and framesheet to adapt to different missions.

Technology in Osprey Mutant 38L backpack

Energy rating

Warnings

/ 5

1 Reviews

What our customers are saying about Osprey Mutant 38L backpack

This 38L climbing backpack is praised for its lightweight design, making it comfortable for climbing and day trips. Users appreciate its functional features, including adjustable tension straps, a removable top cover with an emergency flap, and internal hydration bladder compatibility. The durable and flexible material offers good water resistance. Its versatile design allows for attaching ice axes, poles, helmets, and ropes, making it ideal for winter conditions and multi-day trips. The comfortable hip belt and well-thought-out construction enhance its usability for alpine adventures

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The question has already been answered, thank you very much for trying to help another customer. We will count on you for future questions.

Include AI Generated questions and answers

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

What kind of activities is the Osprey Mutant 38L backpack designed for?

Answer of Generated by AI and verified

The Osprey Mutant 38L is a versatile, year-round backpack engineered for climbers, alpinists, and hikers. Its features are specifically fine-tuned for vertical ice, steep terrain, mountaineering, and multi-pitch ascents.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

Is the Osprey Mutant 38L backpack made with sustainable materials?

Answer of Generated by AI and verified

Yes, this backpack incorporates recycled materials. The main body, lining, and bottom are all made from 100% recycled nylon with a bluesign® APPROVED status and a DWR treatment made without PFAS.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

Does this backpack come with a rain cover?

Answer of Generated by AI and verified

No, the Osprey Mutant 38L backpack does not include a rain cover. However, it is constructed with a snow-shedding backpanel and DWR-treated fabrics.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

Is the Osprey Mutant 38L backpack worth the investment for serious climbers?

Answer of Generated by AI and verified

The Osprey Mutant 38L backpack is designed for dedicated climbers and alpinists, offering features like ToolLock™ ice axe attachment and a harness-compatible hipbelt. Its adaptability for various climbing conditions makes it a valuable choice for serious climbers.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

What is the volume and load range of the Osprey Mutant 38L backpack?

Answer of Generated by AI and verified

This backpack has a total volume of 38 liters. It is designed to comfortably carry a load ranging from 5 to 13 kg.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

What features does the Mutant 38L have for carrying climbing gear?

Answer of Generated by AI and verified

The pack is equipped with several climb-specific features, including dual ToolLock™ ice axe attachments with bungee tie-offs, a three-point haul system, a rope attachment system, and dual gear loops and ice gear carry loops on the hipbelt.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

Is the Osprey Mutant 38L compatible with a hydration reservoir?

Answer of Generated by AI and verified

Yes, this backpack is hydration compatible and includes an internal hydration sleeve to accommodate a reservoir.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

Can I carry skis or a helmet with this pack?

Answer of Generated by AI and verified

Yes, the Mutant 38L is designed for versatility. It includes a reinforced A-frame ski carry system and a removable, multi-position helmet carry net.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

What is the backpanel of the Mutant 38L made of?

Answer of Generated by AI and verified

The backpack features a snow-shedding fabric backpanel, which is designed to prevent snow from accumulating on the pack while in use.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

Can I use the Osprey Mutant 38L for fast and light ascents?

Answer of Generated by AI and verified

Absolutely. The pack is designed for adaptability. You can strip it down by removing the top lid, framesheet, and aluminum stays to create a lighter configuration for fast-and-light missions.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

Is the hipbelt on this pack compatible with a climbing harness?

Answer of Generated by AI and verified

Yes, the Mutant 38L features a reverse-wrap hipbelt that is designed to be compatible with a climbing harness, ensuring comfort and accessibility to your gear.

* Generated by AI based on customer and product data

2026-09-09

Generated by AI and verified

Osprey Mutant 38L backpack

How does the capacity of the Mutant 38L compare to the Osprey Talon 44L?

Answer of Generated by AI and verified

The Osprey Mutant 38L has a volume of 38 liters, placing it in the 31-40 L capacity range.

* Generated by AI based on customer and product data

Ask a technical question about this product

Frequently bought together
Best sellers

Use cases

Multi-Day Hiking 90% Fit

With a 38L capacity, this backpack is engineered for multi-day hiking trips, offering ample space for gear. Its hydration compatibility ensures you can stay hydrated on long treks.

38L volume,Hydration system compatible,Load range of 5-13 kg

Alpine & Ice Climbing 100% Fit

Specifically designed for vertical pursuits, the frameless structure and snow-shedding back panel make it a high-performance choice for alpine and ice climbing. The design prioritizes mobility and resistance to snow buildup.

Snowshed Fabric back panel,Frameless structure,Durable recycled nylon construction

Technical Mountaineering 90% Fit

Engineered for demanding mountain environments, this pack's durable, high-tenacity recycled nylon construction can withstand abrasive conditions. The snuggle_up suspension system and hip belt pockets provide stability and access to essentials during technical ascents.

snuggle_up suspension system,Hip belt pockets,100% recycled 420D nylon bottom

Adventuring 80% Fit

For the users who prioritizes sustainability, this pack is an advanced choice. It's constructed entirely from bluesign® APPROVED, 100% recycled nylon fabrics with a PFAS-free DWR treatment, minimizing environmental impact without compromising performance.

bluesign® APPROVED materials,100% recycled nylon fabrics (main, lining, bottom),DWR treatment made without PFAS

Best for

Best for Performance-Focused Hikers

With a 38L capacity, hydration compatibility, and a snow-shedding back panel, this pack is built for demanding, high-performance hikes and alpine pursuits.

Based on: capacity: 31-40 L, Back panel: Snowshed Fabric, Hydration compatible: yes

Ideal for Eco-Conscious Adventurers

This pack is constructed from bluesign® APPROVED, 100% recycled high-tenacity nylon, offering a sustainable choice without compromising on durability.

Based on: material: 100% recycled 210D high-tenacity nylon, 100% recycled 210D nylon, 100% recycled 420D nylon

A Serious Upgrade for Mountain Users

This pack's specialized features, like the snuggle_up suspension and durable, recycled materials, offer a significant upgrade for dedicated users.

Based on: suspension_system: snuggle_up, Material: 100% recycled 210D high-tenacity nylon, 100% recycled 210D nylon, 100% recycled 420D nylon

Benefits

FunctionalCarry your gear for the day's hike

With a 38L volume and a recommended load range of 5 to 13 kg, this backpack is designed to hold your hiking essentials. The snuggle_up suspension system helps manage the load during your trek.

Volume: 38 L

Load range: 5.- 13 kg

Suspension system: snuggle_up

Intended use: hiking

FunctionalDesigned for alpine conditions

The back panel is made from Snowshed Fabric, which is designed to prevent snow from accumulating on the pack. This feature makes it a reliable choice for hiking in snowy environments.

Back panel: Snowshed Fabric

Back panel ventilation: Snowshed Fabric

Recommended use: Hiking

Ideal buyer profiles

The Eco-Conscious Alpinist

This individual prioritizes gear that performs in demanding mountain environments while minimizing its environmental impact. They are experienced in alpine pursuits and look for equipment that is both durable and made with sustainable practices in mind.

The Osprey Mutant 38 is an excellent match due to its construction from 100% recycled, bluesign® APPROVED nylon fabrics with a PFAS-free DWR treatment. Features like the snow-shedding back panel and hydration compatibility provide the technical performance needed for alpine activities, aligning perfectly with their values and needs.

The Year-Round Hiker

This hiker doesn't let the seasons dictate their adventures. They need a versatile, reliable pack that can handle everything from summer trails to snowy ascents. They value a secure fit, accessibility, and features that adapt to changing conditions.

With its 38L capacity, this pack is sized for substantial day hikes or light overnights. The snowshed fabric back panel makes it suitable for winter use, while its hydration compatibility and hip belt pockets are essential for long days on the trail in any season. The 'snuggle_up' suspension system ensures a stable carry during active pursuits.

The Minimalist Mountaineer

Focused on fast and light ascents, this user seeks a frameless, streamlined pack that carries essential gear without excess weight or bulk. They value a close-fitting design that moves with their body and provides quick access to tools and hydration.

The frameless structure of the Mutant 38 offers a lightweight and streamlined profile ideal for minimalist objectives. Its 5-13 kg load range is perfect for carrying essential climbing or ski touring gear, and the 'snuggle_up' suspension system provides the required stability for technical terrain.

Competitive features

When evaluating the Osprey Mutant 38l Backpack against its competitors, it's clear that each pack is designed for a distinct purpose. The Mutant 38l is a specialized alpine and mountaineering pack, contrasting with general hiking, travel, and photography-focused options like the Berghaus Freeflow, Deuter Access, and Lowepro Flipside.

Where it excels

The Osprey Mutant 38l is specifically engineered for technical alpine climbing and vertical ice, featuring a close-to-body fit for stability, a three-point haul system, and reinforced ski carry options. It offers significant customization with removable components, including the top lid, helmet net, and framesheet, allowing users to strip it down for minimalist ascents. Constructed with durable, recycled NanoFly™ and robic fabrics, it provides a formidable build quality tailored for harsh mountain environments.

Consider alternatives if...

Photographers requiring dedicated, secure gear access should look towards the Lowepro Flipside Trek 350 Aw, which is designed specifically for camera equipment.

Verdict

The Osprey Mutant 38l is a highly specialized backpack that excels in its intended environment of alpine, ice, and rock climbing. Its design, developed with athletes, prioritizes stability, durability, and modularity for vertical pursuits. While it's an exceptional choice for serious mountaineers, its focused feature set makes it less versatile for general hiking, travel, or daily use compared to other packs in this comparison. If your adventures involve steep terrain and technical gear, the Mutant 38 is a top-tier companion.

Specs comparison

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Material100-syntheticrecycled_materials, nylon, polyesterrecycled_materials, nylonsynthetic
Capacity31-40 L26 L38 L65.0 L0-10 L44 L
Hydration CompatibleYesYesYesNoYesYes
Intended Usehikinghikinghikinghikinghiking, urbanhiking
Department NameLuggage & Bags-womenLuggage & Bags > BackpackswomenLuggage & Bags > Backpacks
Suspension SystemSnuggle UpSnuggle Up-Snuggle UpSnuggle UpSnuggle Up
Type Of Rucksack Backpack Holdallbackpack-Backpack-Framelessbackpack
Volume38 L26 L38 L65 L10 L44 L
Back PanelSnowshed FabricAirscapeAirScape backpanelAirScape-AirScape
Back Panel VentilationSnowshed FabricAirscapeYesAirScape-AirScape
Hydration System CompatibleYesYesYesNoYesYes

Specs vs competitors

Favorite On Favorite Off
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Favorite On Favorite Off
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Material100polyamide, polyester, recycled_materialspolyamiderecycled_materials, polyamidepolyamidesynthetic
Capacity31-40 L38l32.0 L40 L30 L30.0 L
Hydration CompatibleYesYesYesYesYesYes
Intended Usehikinghikinghikinghikinghikinghiking
Department NameLuggage & BagsLuggage & Bags > BackpacksLuggage & Bags > BackpacksLuggage & Bags > BackpacksAdultsLuggage & Bags > Backpacks
Suspension SystemSnuggle UpSnuggle UpSnuggle Up--Snuggle Up
Type Of Rucksack Backpack Holdallbackpackbackpack-backpackbackpackbackpack
Volume38 L38 L3240 L30 L30 L
Back PanelSnowshed Fabriccontact back systemYesSwisswool TEC KNIT back systemCOMFORT-CONTACT back system-
Back Panel VentilationSnowshed Fabric-YesSwisswool TEC KNIT back systemYesAlly Cross-Stay + HDPE Framesheet
Hydration System CompatibleYesYesYesYesYes-
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