with airflow channels New neoprene cell phone pocket Removable wax pouch and sunglass sleeve Sternum strap and stowable waistband straps with pockets Upgraded rubber grip zipper pulls Tricot paneling on shoulder straps FABRIC 600d denier polyester / a.b.r. nylon dobby 13.5 in. x 20.5 in. x 9 in. Cubic inches: 2,500 cubic inches  (less)