BILT Bilt Cooling H2O Vest - 3XL, Silver Waterproof interior keeps you dry Polymer-imbued fabric uniformly distributes water for balanced, efficient cooling Quickly absorbs water in just 1-3 minutes for instant temperature reduction Moisture-resistant inner layer keeps clothing dry Low profile styling layers well beneath most protective apparel. Differential cut with a higher waist and longer back provides effective coverage in the riding position. Spandex side panels for a great, non-restrictive fit. Durable 100&#37; nylon shell. Fully zippered front opening