Repelaweave fabric with Taurpalite bottom for maximum protection against elements. Ergonomic MaxLoad multi-compartment design. Barrier zipper tricot lined pocket for valuables. Breathable load absorbing shoulder harness. Ergonomic raised foam back panel with lumbar support. Stretch mesh front stash pocket. Dual stretch mesh hydration pockets. Gear Tech computer sleeve fits most 17" laptops. Adjustable compression straps. Multi pocket organizer.