http://www.windetergent.com/
These guys say:
Most liquid detergents do not target embedded odors and when gym clothes are washed, these odors that are caused by bacteria attracted to sweat soaked fabric stay embedded in the fibers. After a few workouts, even the best high tech fabrics typically develop a musty odor.
Using a scientifically formulated formula, WINaposs super oxygenated system directly targets this issue oxidizing the offensive odors and stains. This unique oxy cleaning power eliminates the colored bodies from stains while removing the embedded sweat molecules that fuel the odors that overwhelm the fabric. Simultaneously, these ingredients also react with soil and organic materials in the wash causing them to either decolorize or disintegrate. Once in a soluble form after oxidization, WINapos02s surfactant system washes them away.
Anyone using "Win"?