Trekking rucksack suitable for mens colour blue style sporty capacity 75 litres weight 233 kg height 79 cm width 35 cm depth 35 cm features hydration compatible emergency whistle chest strap hip strap water bottle pocket padded back outside pockets front pocket side pocket lid pocket base compartment additional fastenings walking pole holder ice axe holder ski attachment gear attachment points straps ergonomic shoulder straps compression straps