ExoWear Front Zip Jackets are designed for multi-sport use and give the most thermal protection available in a neutrally buoyant exposure-protection garment. The fabric of the jacket has OMNIREDTM Infrared Technology, which turns your outbound body heat into infrared energy and reflects it back to your body for thermal warmth. Water repellent, windproof, breathable, quick-drying, wicking, and anti-microbial components make up 3-Layer Fabric, which shields you from the elements. ExoWear's 4-Way Stretch delivers more elasticity and breathability than similar products' 2-Way Stretch, which is important for freedom of movement in the water. Zip up for more warmth and protection, or zip down to keep your body temperature in check. This versatile piece is ideal for changing conditions and can be used on its own or added to the Long Sleeve Top or Vest.