Net back system which will adjust to shape of back and has great ventilation system | breathable padded anatomically shaped shoulder and waist straps | 2 main compartments and front zipper pocket | 1 main compartment is possible to divide into 2 parts | separate bottom access into the compartment | side elastic pockets | side compression straps | chest and waist belt | fixation for accessories | water bladder output | raincover | reflective points