Huk Icon X Running Lakes Hoodie - Volcanic Ash The Icon X Running Lakes Hoodie is loaded to the gills with Huk Performance Technology to help you handle the elements. The synthetic fibers contain a hydrophobic coating to transport water away from the skin while still remaining breathable. By spreading moisture over a larger surface area this can cool you off by rapidly drying the body. Features UPF 50 Breathable Back Ventilation 100 Polyester Hydrophobic Coating Sizing Gear Size Medium Large X-L