Material: polyester 600D

Size: 12.8"x7.7"x19.9"
Construction: large main compartment with two side zipper closure.Audio pocket with headphone port. orgnized front zipper pocket include pen pocket ,key ring and cellphone pocket. S-shaped padded shoulder straps with thumb-ring pulls. Comfortable padded back panel. Side mesh pockets for water bottles or last minute stuff

Various materials,colors, sizes and printing logo may be custom-made.