Trekking rucksack suitable for unisex colour blue style sporty capacity 50 litres maximum volume 57 weight 171 kg features chest strap hip strap padded back raincover hydration compatible internal pockets mesh pocket outside pockets lid pocket base compartment side pocket front pocket additional fastenings ice axe holder walking pole holder straps padded hip belt ergonomic shoulder straps padded shoulder strap compression straps bag feature expanda