The Sea To Summit Ultra-Sil Dry Bag is an essential piece of gear for adventurers seeking lightness and practicality. Thanks to its waterproof and roll-top Hypalon closure, your gear will stay well-organized and protected from moisture. This ultra-light compression bag features an oval base to prevent rolling and fits easily into your pack. Ideal for storing a layer or a meal during your outings. The 30D Diamond Ripstop Cordura® nylon fabric offers great durability and a hydrostatic head of 2000 mm. It is Bluesign® approved with a PFC-free DWR finish. Its slippery finish allows you to slide it easily into the tight spaces of your pack.