Absolute comfort down to 3degC/37degF Designed in a textured, insulating, and breathable thermal fiber specially developed by EKOI to combine flexibility, finesse, and thermal protection, this suit protects against cold and humidity down to 3degC/37degF. The fiber's stretchy nature provides an excellent sense of freedom while storing body heat. Its 8h skin with density and widths adapted to your weight offers optimum comfort for long distances.