Designed to race, this AeroSwift singlet helps you stay dry and cool when the pressure is on. Its lightweight, sweat-wicking fabric is enhanced with perforated areas to offer airflow from start to finish. Fit & Design: Bonded seams at neck and armholes offer a smooth comfortable feel and unrestricted movement Breathability holes enhance cooling in high sweat areas Slim fit for a body-skimming feel Technology: Nike Dri-FIT ADV levels up our sweat-wicking technology with advanced cooling and zones of breathability to help you stay dry and comfortable.