CW-X Men's White Expert Running Shorts The Expert short uses the Conditioning Web design. The Conditioning Web offers IT band and hamstring muscles the taping support commonly applied to injured muscles. Here it's harnessed to uninjured muscles, helping make sure they stay that way. Coolmax 4-way stretch body fabric manages moisture and keeps you comfortable. The targeted support focuses on IT band and hamstrings. Reflective logo, key pocket and couble-reinforced waistband with flat draw-string. Used as warm functional primary layer or outer layer depending on weather conditions