1.Main material in 600D polyester 2.One main compartment and one front pockets for all your necessities 3.Interior organizers inside main compartment 4.CD player pocket inside front pocket, with exit port 5.One front mesh pocket with elastic loops for bottles 6.Elastic drawcord at front side for extra gear 7.Air mesh tex padded back panel with spiral channel for air ventilation 8.One easy to carry handle on top 9.Anti-slip padded shoulder straps