Spacer mesh allows unparalleled ventilation thanks to the four-way air circulation - Integrated rain cover included 2 spacious main compartments with additional compartments for organising gear Pockets on the waist belt where you can store your phone - Laptop/document compartment - Spacious side pockets made of elastic mesh for example a larger water bottle Durable material. If damaged, it does not tear further, does not hair or pills. Possibility of comfortable adjustment thanks to adjustable compression straps - loops for attaching hiking equipment - Alpinus Safety reflective elements on the front of the backpack