This is Lifesystems most comprehensive Light & Dry First Aid Kit, for racers and outdoor event enthusiasts who need to minimise the weight they carry when on the trail. Still weighing in at a tiny 156g, you'll hardly even know it's there. The Pro includes more contents than the Nano or the Micro. Packed in a fully waterproof Loc-Top bag, the kit is also great for sports on the water. Light & Dry Pro First Aid Kit