Design and Details Robust, waterproof PU-coated 70D recycled nylon body fabric has a 2,000mm hydrostatic head Unique tear-proof drawcord channel with Capture Cord Lock opening Reinforced stitching on all stress points and overlocked fabric edges for added strength Sturdy, nylon webbing handle on round base provides a secure grab point Lightweight high density weave waterproof fabric 70 Denier 210T nylon with a white interior polyurethane (PU) coating High density 210T weave gives the fabric a stronger tear strength and greater durability White PU coating reflects light and makes it easier to identify contents inside your dry sack PU coating to make two different versions of this fabric: 2,000mm (Nylon Stuff Sacks, Pack Covers and Compression Sacks) and 10,000mm (Lightweight Dry Sacks, eVac Dry Sacks and Dry Compression Sacks) waterhead rated