The Ultralight / Watertight .9 has been tested, abused, and approved by adventure racers in the Eco Challenge, Primal Quest, and Raid Gauloises. Designed for one to four people on trips up to four days, this is an ideal kit for adventures who may be exposed to the elements. Two inner DryFlex™ waterproof liners and seam-sealed outer silnylon bags provide multiple layers of protection from the elements.