The Immersion Research Polar Skin is made with super warm and compressible Polartec Thermal Pro in core body areas. Power Stretch Power Dry panels offer reduced bulk and increased mobility in key areas. Low profile, flatlock stitched seams Uniquely versatile due to it's exceptional breathability and quick drying time, providing a remarkably broad comfort range. Usage: Whitewater paddling, touring paddling. Applications: Under a dry top on it's own or part of a layering system on the coldest days.