The Ultralight / Watertight .5 is perfect for one-to-two-day solo trips when you want an ultralight kit with enough supplies to treat common injuries. Packaged in a rugged, yet lightweight silnylon bag with a DryFlex waterproof liner, the UL / WT .5 will stay dry whatever the elements. The silnlon bag has enough room to add other first aid and survival items and provides rugged protection for the DryFlex liner. Ideal for hiking, kayaking, backpacking, mountian biking and climbing. WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov