With a 30D Siliconised and high tenacity CORDURA® nylon fabric, the Ultra-Sil™ Dry Sack has exceptional strength with the 2000mm waterhead keeping all your gear completely dry. Fully seam sealed, every droplet of water is kept out, even when in water, making the Dry Sack ideal for kayaking, boat trips or touring in the rain. A slightly translucent finish provides easy visibility of contents and a round base makes packing easy. The Roll Top design must be closed properly to ensure water doesn’t get in. Begin by folding the Hypalon strip down first and get three rolls before closing the buckle.