Securely attaches to Race Travel Bag for complete travel ensemble; Molded, expandable helmet-protection compartment-fits aero helmet; Separate waterproof WetZoot bag in addition to standard sealed wet compartment; Two mesh cargo pockets for easy-access storage; Clamshell design for maximum access; Large separated additional pockets for easy packing; Four compression straps;Cell phone pocket on shoulder strap; Vented back panel for breathability and comfort; Memory foam shoulder straps for comfort; Adjustable sternum and shoulder straps; Two soft and durable handles. External frame system to ensure proper load distribution; Adjustable shoulder strap heights to accommodate different torso lengths. Sizes 14" wide, 12" deep, 24" tall(35.5cm wide, 30.5cm deep, 61cm tall) Color Black Fabric 1680D Nylon in high-abrasion areas, 420D Poly, PU-coated mesh