Angelina 6-Pair No-Show Liner for Ballet Flats w/ Silicone Grip, SK03, Black/White/Beige, Lady's One Size Ultimate socks solution for ballet flats Super low no-show liner socks with silicon non-slip heel grip Sports your favorite no-sock looks (ballet flats, loafer, sperry) with dry feet comfort Lady's one size; Machine wash, line dry 6 pairs assorted colors per pack: black, white, beige, and steel gray