Cycling backpack suitable for unisex colours green white style sporty capacity 18 litres weight 1 kg height 50 cm width 28 cm depth 12 cm features raincover hydration compatible chest strap hip strap internal pockets tool compartment outside pockets front pocket additional fastenings helmet holder straps ergonomic shoulder straps padded shoulder strap main compartment feature fits a4 size bag feature suitable as cabin luggage iata norm materi