Campus 30 Daypack: Rugged PVC/Polyester outer fabric. Inner polyester lining. Large main compartment with inner polyester lining. Front zip pocket. 2 side bottle pockets. Padded back and shoulder straps. Padded laptop sleeve. Outer attachment loop. Faux suede accents and zipper pulls. Dimensions: 18"x12"x6" 30 Litres.