IDEAL WATER TEMP: 49˚ - 58˚ F Featuring Xcel's new Thermolite IR an infrared fiber infused lining that enhances warmth by helping to create and hold the heat generated by the body. New Thermo Lite Infrared New Textured Exterior Adjustable Strap Taped Seams Quick-Dry Fibers Pull up Ankle Loop Engineered Design Single Rubber Bottom Â