Constructed from water resistant 600D polyester Large reflective trim Heavy duty zippers One main compartment and one rear accessory compartment Includes removable shoulder strap Mounts to rack with four Velcro straps Velcro Straps 12.5x5.75x7.5` 878 c.i. Black/Gray XXX-Large (700+ c.i.)UPC/EAN/GTIN: 072774975976