Speedo Fastskin is the most technically advanced swimwear ever made. Unique fabric mimics a sharkskin with V–shaped ridges that decrease drag and turbulence around the body. Muscle compression components reduce muscle vibration. Seaming improves muscle coordination. Full body competition suit has a gripper fabric on inner forearm aiding the swimmer's "grip" or feel for the water through stronger friction. Back zipper. Fabric:74% polyester/26% Lycra spandex. Made in the USA,Imported fabric.