Osprey\'s Mutant 22 has evolved into the ultimate climbing pack, designed for year-round ascents, yet still remaining a great choice for alpine hiking too. Active winter climbers will welcome the snow-shedding backpanel and dual ToolLock system, letting you quickly and securely attach your ice axes. When summer arrives you will benefit from the EVA die-cut ventilated shoulder harness and the ability to strip 120g from the total pack weight by removing any features you won\'t need. Snow-shedding backpanel and low-profile harnessDual ToolLock ice axe attachmentsSternum strap with emergency whistleUnder lid rope carrying systemInternal hydration sleeveRemovable framesheetDual front daisy chains420HD Nylon Packcloth 210D Nylon Honeycomb Weight: 0.57Kg Stripped Weight: 0.45Kg