The Adventure Medical Kits' Ultralight / Watertight Series features proprietary DryFlex bags for the ultimate in ultralight, waterproof storage. Ideal for the multi-sport athlete that refuses to be let down or weighed down by his or her gear. The Ultralight / Watertight .5 is perfect for one-to-two-day solo trips when a small first aid kit with enough supplies to treat common injuries is needed. Packaged in a rugged, yet lightweight silnylon bag with a DryFlex waterproof liner, the kit will stay dry in all elements. The silnylon bag is watertight and roomy enough to add other first aid and survival items and provides rugged protection for the DryFlex liner. Keep bugs away with After Bite wipes. Ideal for hiking, kayaking, backpacking, mountain biking and climbing.