Alpine backpack suitable for unisex colour blue style sporty capacity 25 litres weight 073 kg height 50 cm width 35 cm depth 20 cm features key holder chest strap water bottle pocket padded back outside pockets front pocket additional fastenings ice axe holder gear attachment points straps removable hip belt ergonomic shoulder straps compression straps main compartment feature fits a4 size bag feature suitable as cabin luggage iata norm materi