Comfort in frigid waters is extremely important and the O'Neill Thermo-X Shorts cover a key region. Meant to be worn under your existing wetsuit, the Thermo-X Shorts are a soft and stretchy layering piece offering incredible insulation with minimal bulk. Snug without being restrictive, odor resistant, and built tough for long-lasting use, the O'Neill Thermo-X Shorts are a premium cold water choice for additional warmth and extra protection from the elements.