The Quark 30 hiking backpack from Bach Backpacks features a rugged design in abrasion and tear resistant material. The roll-up top of the bag allows you to modulate the volume by an additional 10 liters or so. It has a removable flap that you can decide to take only when necessary. The Bach Backpacks Quark 30 has a ventilated back panel and adjustable shoulder straps. It also has a lap belt that helps distribute the load over the hips and pelvis, so that the shoulders are completely relieved. Features: Composition: 100D Cordura Mini Rip fabric + 500D Cordura reinforcements.Removable flap adjustable in heightTop of the bag can be zipped up (additional volume 10 liters)Ventilated back panelPadded shoulder strapsAbdominal beltChest strapLoad retaining strapsHandleAttachment system for walking sticks, helmet or ice axeMulti-purpose cords2 expandable side pocketsVolume: 28 liters (size M); 32 liters (size L)Dimensions: 62 x 26 x 21 cm (size M); 69 x 26 x 21 cm (size L)Back length: 53 cm (size M); 60 cm (size L)Max. load weight: up to 14 kgApproximate weight 870 g. (size M); 920 g. (size L) Backpack Bach Equipment ---Quark 30 Rivera Blue