Waterproof and breathable rug, strong 600 Denier outer layer, absorbent lining with thermal filling of 100 g/m2. Removable adjustable leg straps, cross surcingles with elastics, and adjustable chest fastening for an optimal fit.Outer: 100% PolyesterInner: 65% Polyester, 35% CottonFilling: 100% PolyesterWaterproofBreathable