NWT Spanx velvet leggings Great fit Dress them up or down - some people think they fit a little on the small side. The large doesn’t fit like a medium, but def snug Get the coziest feel with a knockout look! Designed with our signature Power Waistband and soft velvet fabric, these leggings are the go-to for every soiree. Dress them up or dress them down—this style is a must for the season.