Reinforced padded bottom. Reversed zippers. Large outer pocket. Main compartment with elastic for binder or computer bag. Two side pockets, one with mobile phone/MP3 pocket with headphone pass-through. Inner pocket. Safety pocket on the back. Shaped padding on the carrier straps. 450D polyester. Volume: approx. 25 litres. Colors: black, red, grey. Sizes: 32x17x48 cm.