Designed for hiking and via ferrata, the Mountain Trainer 2 features a body-hugging Dry Back carrying system and split shoulder straps for enhanced breathability, plenty of mobility and a snug fit. The slim, agile 28-liter version has a lid pocket and easy-access front compartment. Dry Back Contact The Dry Back Contact carrying system keeps your load close to your body while still keeping your back dry. This is achieved by reducing the contact area and 3D ventilation channels, which provide more evaporation per cm² than traditional constructions and a reduction in temperature in the mid-back area. The two-piece compression system and a hip belt that completely encloses the hip and with an additional equipment loop for via ferrata Karab.