600D polyester and ripstop nylon with latex rubber backing Huge main compartment with U-shaped Zippered opening Zippered side accessory pocket with rubber headphone exit port Reflective piping In-line skate wheels with corner protectors Reinforced large webbing carry handles with padded velcro closure Heavy duty oversized zippers and accessories Detachable/adjustable padded shoulder strap with metal fixtures Mesh drink bottle pocket Drop bottom compartment with baseboard and ventilation eyelets Zippered end pocket Padded end quick grab handle