Made of weatherproof, 420-denier nylon, bottom is made of 1680-denier ballistic nylon, this backpack features padded, adjustable, tuck-away straps perfect for when carrying a lighter load, but also smooth-rolling in-line skate wheels with a 2-stage retractable T-handle for when you've got a heavier load. Both haul loop and T-handle feature ergonomic grips. Backpack also includes two spacious main compartments, plus a smaller compartment with an organizer panel making smaller travel items handy.