I found this at: http://www.freep.com/news/health/run23e_20050823.htm
Gym clothes take stink out of workouts
New gear uses silver fibers to kill smelly bacteria
August 23, 2005
BY LISA LIDDANE
ORANGE COUNTY REGISTER
Imagine a shirt that you can wear several days in a row for serious hiking during a camping trip this summer.
Without washing.
Without driving away your companions and every living, breathing being within 20 feet.
It's a reality now with sports clothing, underwear, socks and shoes that promise to take the stink out of fitness. The stink-control clothes are designed so that you can wear them again without having to launder them right after the first wearing -- even if you've soaked through them. .......<snipped the rest>......