Osprey Mutant 52 Pack Size:Small/Medium Whey protein contains one of

Whey protein contains one of the richest sources of branch chain amino acids

Dyneema Composite Fabrics keep contents dry and easy to locate

Philip Curry

5 oz / 638 g

Osprey Mutant 52 Pack Size:Small/Medium Whey protein contains one ofYour most committed alpine rock and ice pursuits demand a pack that's up for the challenge. Overview Your most committed alpine rock and ice pursuits demand a pack that's up for the challenge. The Mutant 52, with its dialled in features and expansive capacity, is here to answer the call. Tested and developed by local guides and athletes in some of the harshest conditions, the Mutant 52 has evolved into a formidable mountaineering pack for big