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Overall Score Sort Icon
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Pros Durable, versatile, fully featured for all mountain pursuitsDurable, versatile, streamlined and functional features, good weight-to-volume for bigger packVersatile, thoughtful features, simpleDurable, comfortable, optimized for ski mountaineeringDurable, comfortable, good features for cold expeditions
Cons Closure system limits ability to overstuff, larger size less ideal for more technical routesFramesheet does not integrate into bivy system, somewhat tricky to slim down for summit pushCould be more durable, slightly heavier than competition, reduced comfort due to shapeHeavier, novel front access zipper can be difficult to useCumbersome ice axe attachment, heavy for volume
Bottom Line The Mutant 52 is the largest in a series of 3 packs, and well suited to multi day climbs and colder weather pursuitsIf you like longer trips or winter climbs, the Mission 75 is a great packā€”and it will still perform well on lighterweight and technical climbsThis pack is a quiver-of-one tool: it can handle everything from ice and skiing to cragging and light expeditionsThe durability and feature set of the Ortovox Peak Light 32 make it particularly well suited to ski mountaineeringThis is a great pack for long, cold expeditions; it is comfortable and climbs better than most packs of this size
Rating Categories Osprey Mutant 52L Mission 75 Speed 50 Peak Light 32L Gregory Denali 100
Weight To Volume Ratio (30%)
3
7
8
4
4
Comfort (20%)
8
4
4
6
6
Durability (20%)
9
8
5
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8
Versatility (20%)
7
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6
3
Features (10%)
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Totals (%)
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10
Specs Osprey Mutant 52L Mission 75 Speed 50 Peak Light 32L Gregory Denali 100
Measured Volume (liters) 47 70 52 30 90
Measured Weight (pounds) 4.19 4.1 2.6 2.53 6.3
Measured Weight (grams) 1899.4 1859.7 1180.4 1148.2 2860.2
Weight-To-Volume Ratio (grams per liter) 40.41 26.57 22.70 38.27 31.78
Frame Type Removable framesheet and dual stays Active suspension Removable frame sheet doubles as bivy pad SWISS WOOLTEC knit back construction Integrated framesheet, removable aluminum stays
Fabric 210D High Tenacity Nylon 420D nylon 210D nylon ripstop, 420D nylon Nylon 420D Oxford 210D nylon
Pockets 2 zippered lid 2 zippered pockets in lid 1 lid with 2 compartments, 1 hip belt pocket 3 zippered lid, 1 zippered side, 1-2 zippered front (modular), 1 zippered hip belt, 2 side pockets; 1 side access zipper
Hip belt Yes- removable Yes Yes - removable Yes - removable hip belt Yes - removable, with gear loop and pocket
Removable Suspension Padding? Yes Removable framesheet, stays, and removable foam pad Yes Yes, removable framesheet and stays; also has a removable foam pad which unfolds to double in length
Lid? Yes Yes Yes - removable Yes Yes - removable
Hydration System Compatible? Yes Yes Yes, internal pouch for bladder Yes Yes, internal pouch with buckled hanging loop
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