95% nylon with 5% cowhide leather trim. 1 medium front zip pocket with slip pocket inside. Top zip closure. 1 large open compartment with 1 slip pocket and 1 zip pocket inside. Zippered compartment for laptop. Two open pockets on sides. Laptop Dimensions: 13"x8.5"x0.5" Adjustable 24" shoulder straps. 13.5"x9"x4.5"