Oceanweave 600D reclaimed fishnet polyester with waterproof polyurethane coating Hydracore liner provides an exceptional IPX5 waterproof rating Rixen & Kaul Vario 2 spring-loaded hooks immediately adjust from 6mm-16mm, without any need for tools Compression/cargo straps provide exceptional load control and allow gear to be carried outside of the main cavity - Ideal for unplanned loads faced by commuters Intuitive waterproof roll-down closure system Removeable 14.2�x10.2� padded laptop/electronics sleeve/organizer External zippered pocket for keys/wallet, etc Single daisy-chain tie-down strip for additional load attachment Ultra-stiff Polypropylene backing plate Ultra-visible three way 3M triangle logos Hook and Rail 18.5x11.25x5.25� 1379 c.i. (Single) BlackUPC/EAN/GTIN: 058817379703