Deuter Attack 20 has been developed for ambitious mountain bikers looking for a comfortable, secure fitting bike pack with a removable back protector for gnarly downhills, and bike carry function for steep ascents. Thanks to the Deuter Contact innovative backsystem, the rucksack provides comfort that relieves the back while keeping the weight of the load close to the body and distributing it evenly. Channels between the cushions as well the breathable, sturdy 3D Airmesh lining provide pleasant ventilation. Its ergonomic adjustable shoulder straps, and hip fin Pull-Forward automatic side compression system provide perfect load transfer. In order to fulfill its specific challenges, the rucksack has stabiliser straps, adjustable sternum straps, and side compression straps to manage carrying comfort and durability. The bike pack also provides stowable helmet holder, detachable rain cover, glasses stow system and SOS label. It also features two stretch side pockets, zipped smartphone pocket on side, front pocket with pump sleeve, organiser section for tools and zipped mesh pocket for spare inner tube, also googles pocket, and last not least hip fin zipped pockets. The rucksack is abrasion resistant. The bike pack also provides dedicated hydration system compartment. Reflective details allow improved visibility.