What Our Gearhead® Experts Are Saying:"The Ultralight Watertight . 5 is my go-to for quick trips with a friend. It’s super lightweight, completely waterproof, and packed with the essentials for treating wounds, blisters, and other common injuries. Perfect for any outdoor adventure where space is tight."The Adventure Medical Kits Ultralight Watertight . 5 Medical Kit is designed for adventurers who need reliable, lightweight first aid supplies for short outings. Weighing just 3. 6 ounces, this compact kit includes everything you need to treat wounds, blisters, and minor illnesses for 1–2 people over 1–2 days. With its 100% waterproof DryFlex inner bag and a water-resistant outer bag, this kit keeps your supplies dry even in the harshest conditions. Whether hiking, kayaking, skiing, or mountain biking, the Ultralight Watertight . 5 ensures you're prepared to handle common outdoor injuries without adding unnecessary weight to your gear.