Waterproof Ripstop 17.06oz (5oogsm) canvas. Warm blanket lining, Ripstop polyester grids provide extra fabric strength, rope reinforced neckline on rug. This rug has been through a waxed waterproofing treatment process. Features 3 way chest fitting for versatile fitment, shoulder gussets, rump darts, Matte black chest buckles and plaited fittings, taffeta lined chest, combo neck and tail flap, removable leg straps, fleece wither protector and D rings sewn on the side of the rug for east connection of hood or neck rug.