The ultimate sporty-meets-fashion statement, the Night Track Onesie is known for more than just her good looks. This onesie is made from our newest compressive, sweat-wicking fabric and the high neck and zipper details will keep you locked in place for your next sweat session. Wear unzipped on its own and show off a little, or pair with a sports bra underneath for a more high-impact moment. Made in our mid-weight, super-smoothing jersey fabric: Streamline.