600d PET, backpack,one main compartment with laptop layer, one front zipper pocket, two side mesh pocket, rubber earphone outlet,padded back panel,padded shoulder strap with reflective tape. Materials: Polyester. Item Size: 320(w)X450(h)x170(d) mm. Colours: NAVY/BLACK|ROYAL/BLACK|RED/BLACK| MAROON/BLACK|BOTTLE/BLACK.