Salewa Mountain Trainer 2 22L is a women’s lightweight, comfortable and well-ventilated 22-liter backpack for technical hikes and via ferratas.   Salewa’s Mountain Trainer 2 is designed for a Dry Back close carry and with split shoulder straps for increased breathability and freedom of movement. This slim, 22-liter version has a zip-top closure and easy-access front compartment. Salewa Mountain Trainer 2 22L backpack