Engineered to provide versatile thermal protection in a broad range of climates, the Insulator Jacket is built from 62% nylon / 38% polyester fabric for an ideal blend of comfort, warmth, and weather resistance. Features include a DWR (durable water resistant) treated exterior that protects from light rain, poly/spandex stretch side panels that maximize breathability and ensure a snug fit, and our unique RAPIDraw pockets for quick and unhindered access to your firearm. The 100 gm Primaloft Silver lining provides an outstanding warmth-to-weight ratio, and low-profile chest pockets provide plenty of space for your accessories.