Keep the contents of your backpack dry and organised with this set of different size dry bags. These Ultralight, waterproof drybags with roll-top closure are made of 15 D rip-stop nylon with silicone coating on the outside and PU coating on the inside. Perfect for usage when every gram counts. Fully taped seams and with a lightweight version of the closure and buckle. The translucent fabric allows you to recognise the contents.