The Flex Tek Smooth collection features moisture-wicking fabric with just the right amount of compression and comfortable, flatlock seams. Every style is designed just for dancers and provides uncompromised flexibility. Flex Tek Smooth mock neck crop top with cap sleeves; Auto-locking zipper for stay-put fit; All sizes are fully lined in front; Bra-friendly; Medium support; Imported; Fabric: Nylon/Spandex.