Sixcats Mens Mix-color Cotton Striped Silicone Anti off Invisible Socks Hidden Liner No Show Socks 80% cotton 80% Cotton Breathable, Ventilate, Absorbent, Deodorize, Anti-microbial, No Show. Uniquely designed with a silicone PATCH at the heel. Hugs your feet & won't slip off.Make you feel comfortable. The set displays a wide range of colors to accompany your style. Prefect for daily use and easy to take off or wear.Soft and easy cleaning.Great gift to your friends or yourself.