Women's MIZUNO® BREATH THERMO® 1/2 ZIP :: Slide on a comfortable layer that meets your running needs better than your own skin. The super stretchy fabric of the women's Mizuno Breath Thermo® ½ zip not only pulls sweat away from skin quick, it features a unique temperature control system that actually changes body moisture to heat keeping you at your ideal comfort level. Use as a base layer or alone the fabulously flattering fit stays snug but doesnt rub thanks to flatlock seams. Zip up for complete protection or let out a little heat with the ½ zip.