Product Features: 1. Toeless and invisible design is non-slip and intimate, suitable for all types of women's shoes. 2. Massage memory foam at the bottom is sweat absorbent, breathable, reinforced and anti-shedding, relieving pressure on the feet. 3. Silicone strip design at the heel fits your feet well after wearing it, which will not deform and prevents shedding. Product Parameters: 1. Color: black, skin color 2. Size: free size Packing List: 1 pair of socks