The Peregrine Plaid Tough Dry Sack is an oval base shaped dry-sack to prevent rolling; perfect for situations where water and rain is involved. Made from tough 210 D nylon fabric that delivers a desirable combination of qualities: super durable? easy handling? and waterproof. The Hypalonｮ roll-top closure secures the bag shut and keeps the contents protected. Made with double waterproof treatments with a DWR outside and a polyurethane coated inside. Taped and double stitched seams keep the bag watertight.