Cliff Keen Collegiate Singlet - Men's The Cliff Keen Collegiate wrestling singlet features MXS® (Moisture Exchange System) that transports sweat from the body to the outer layer of the garment, allowing the moisture to evaporate quickly. Compression Gear fabric offers increased force and power production while helping to reduce muscle fatigue during matches and training. Elastic leg band. 8.5" inseam. 80% nylon/20% Lycra®. Imported.