Nike run p flash teefor optimal comfort the nike run p flash tee features dri fit sweat wicking fabric and set in sleeves that move with you while you run with reflective trim you will be more visible in low light conditions features dri fit fabric helps keep you dry and comfortable set in sleeves provide a runner specific fit reflective elements enhance visibility in low light fabric dri fit 75 polyester 13 cotton 12 rayon machine washablebuy nike clothing from chain reaction cycles