Zensah,  producer of seamless performance apparel, will debut its anti-blister running apparel at the 2005 LaSalle Bank Chicago Marathon taking place on October 9. It will also feature its full line of performance apparel at the Chicago Marathon Health and Fitness Expo.

The new Zensah anti-blister material is a double-sided moisture wicking fabric which is said to prevent runners suffering from blisters and chafing in the groin and chest area.