The Sea to Summit Ultra-Sil 5L dry bag is ideal for lightweight backpacking, cycle touring and travelling. Bluesign® approved, the semi-translucent 30D Cordura® Ultra-Sil® fabric provides increased durability and abrasion resistance while making it easier to see what is inside the bag. Lightweight, waterproof and functional, this bag also features taped seams to help keep moisture out and an oval base to help prevent it from rolling away on sloped surfaces or when packing, perfect to keep your gear and other small essentials dry and organized during your next outdoor adventure.