Tyr39s competitor tri tops are equipped with a specialised compression web for increased blood flow and maximal muscle performance competitor mesh makes the women39s tri tanks soft breathable and flexible tyr tri tops are more than apparel theyre equipment all competitor triathlon tanks feature built in shelf bras compression technology anti chafe construction and upf 50protection fabrics body competitor woven 80 nylon 20 spandex insert competitor mesh 80 nylon 20 s