Sporting a futuristic look and incredible features, Solid Gray Aluminum Edition Backpacks are a cutting edge solution for carrying your gear. Hand assembled in the Netherlands, Solid Gray Backpacks are made from a custom engineered polymer that is lightweight, strong, and durable. Jam-packed with features, like exchangeable straps, clever compartments to store your smaller items, and a cushy EPDM foam interior that protects all your valuables from scratches and shocks, these backpacks are creating a whole new category of their own.