Ultra-Sil Dry Bags are an ideal dry bag for backpacking, travel and cycle touring and here come in a set of three: a 3-litre, a 5-litre and an 8-litre bag. They are made from bluesign®-approved ultra-lightweight, waterproof 30D Ultra-Sil with CORDURA® yarn fabric that is also semi translucent so you can see what gear you have packed inside. Other features include a roll-top closure and taped seams to further keep moisture out and oval bases so the bags don't roll away on a slope and to make packing more efficient.