Whether you're backpacking, mountain biking, or canoeing, the ultralight/watertight.9 medical kit is stocked with first aid essentials to treat common outdoor injuries, as well as emergency supplies to provide trauma care for bleeding, fractures, and sprains, in a kit with two layers of waterproofing.You'll travel light and fast with this waterproof first aid kit, designed for multi-sport trips of 1-4 days with 1-4 people.Function: First Aid