Japan's Wacoal Corp. has combined its scientific knowledge of the human anatomy with its experience in complex fabrications and apparel design to create performance sports apparel paralleled by none. The company's mission is to meet the sports performance needs of the active U.S. consumer through the CW-X® brand, the world's first truly anatomically-engineered high performance sports apparel.

In a study in Kyoto, Japan, electrical pulse activity of the muscles (muscles firing into motion) was measured electromyographically. Unsupported and partly supported legs both show frequency decrease during exercise, indications of fatigue. Legs supported by CW-X® showed negligible frequency decrease.