The Mammut Trion 38l is a versatile, robust and lightweight mountaineering backpack that offers maximum comfort when worn. The know-how of top athletes contributed significantly to the development of this backpack. Elastic chest strap for optimal comfort and a perfect fitLarge mesh pockets on the shoulder strapHeight-adjustable flap with internal and external pocketsRoll-top closureExternal pocket with water-repellent zipReinforced side binding for skisTwo sturdy ice axe attachmentsTrekking pole holderHydration system compatibleRope attachment strap under the flapSide and front tensionable compression strapsRemovable hip belt paddingForward-facing hip belt adjustmentComfortable due to anatomical shape and soft padding of hip belt and shoulder straps Mammut Trion 38l mountaineering backpack