PRODUCT FEATURESBest race or training vest with windproof front and breathable rain-repelling back GORE-TEX INFINIUM™ WINDSTOPPER® 203 Stretch lightweight fabric on front Nano Flex Light Woven on back for breathable stretch with good water protection Top- and bottom-opening YKK® Vislon® zipper for easy ventilation adjustment on the fly 3 rear pockets Reflective panel at bottom of pockets and around armholes.