+ Reinforced underside
+ back padding with ventilation channels
+ removable breast and waist straps
+ zippered front pocket (not waterproof)
+ loops for rear light and U-lock
+ reflective yarn and reflective logo for more protection at night
+ dimension notebook compartment: 39 cm x 27 cm x 2.5 cm / 15.4 in. x 10.6 in. x 1.0 in.