Alpine backpack avalanche backpack suitable for womens colour turquoise style sporty capacity 20 litres weight 229 kg height 52 cm width 29 cm depth 18 cm features chest strap hip strap emergency whistle hydration compatible key holder back protector avalanche airbag system internal pockets snow tool pocket outside pockets front pocket additional fastenings snowboard holder snowshoe attachment ice axe holder helmet holder ski attachment straps