Running tights Run-AirRunning tights Run Air features extremely accurate modeling, no polyester, excellent material properties, and locked in effect. SeamlessDry technology reduces irritation due to chafing without polyester the polyamide fiber is pleasant and soft on the skin moves smoothly against your skin Air Texturized yarn feel and appearance of cotton high tech Antimicrobial treatment of the fibers prevents the spread of microorganisms that cause bacteria and odor