Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — front view
Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — angle view 2
Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — back view
Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — lifestyle
Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — lifestyle 2
Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — detail view
Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — detail view 2
Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — detail view 3
Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — detail view 4
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Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — front viewOsprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — angle view 2Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — back viewOsprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — lifestyleOsprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — lifestyle 2Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — detail viewOsprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — detail view 2Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — detail view 3Osprey Mutant 52 Mountaineering Backpack 52L in Blue Flame — detail view 4

Osprey Mutant 52 Mountaineering Backpack 52L

Online Only
OspreySKU: 810165740709
Color Blue Flame
Size S/M
Price
$240.00
Stock
Re-stocking soon
22×14 in

Size & fit

Packs for about 4–6 days

  • 29.92 × 13.78 × 11.81 in (exterior)
  • 52 L capacity
  • Larger than 22 × 14 × 9 in when fully packed: check your airline’s limit

Shown to scale next to a 5′9″ person. Airline limits vary. Check your airline’s size limits

Ships from our fulfillment team We’ll email tracking as soon as it ships

Osprey All Mighty Guarantee Repairs any damage or defect, for any reason · Provided by Osprey · Terms

Description

The Mutant 52 is the largest pack in Osprey's alpine line, built for multi-day objectives where you carry everything in and everything back out. Tested by guides and athletes in genuinely harsh conditions, it holds a heavy load close and quiet on technical ground.

Recycled NanoFly and robic fabrics keep the weight sensible for the volume, and the pack pares back to a summit-day configuration once base camp is set. Offered in S/M and M/L.

Online exclusive, shipped direct.

  • Expedition capacity — Up to 52 litres for multi-day alpine objectives
  • Heavy loads handled — Rated to carry 20 to 50 lbs
  • Strips down — Removable lid, helmet net and gear straps for summit day
  • Snow-travel ready — Dual side wand and snow-picket pockets
  • Recycled build — bluesign® APPROVED recycled nylon with DWR made without PFAS
  • 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 side wand/snow-picket pockets
  • Backpanel — Snowshed fabric backpanel that sheds snow rather than soaking it up
  • Shoulder harness — Padded shoulder straps with lightweight, glove-friendly buckles
  • Fit — Two torso lengths, S/M and M/L
  • Hauling — Three-point haul system for hoisting the pack on technical terrain
  • External carry — Reinforced A-frame ski carry and removable helmet net
  • Load range: 20 - 50 lbs (9 - 23 kg)
  • Volume: 50 L (3,051 cu in) in S/M; 52 L (3,173 cu in) in M/L
  • Dimensions S/M: 11.81H x 13.78W x 27.95D in (30 x 35 x 71 cm)
  • Dimensions M/L: 11.81H x 13.78W x 29.92D in (30 x 35 x 76 cm)
  • Weight: 3.224 lbs (1.462 kg) in S/M; 3.4 lbs (1.542 kg) in M/L
  • Main fabric: 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

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