2mm premium soft neoprene for ultimate comfort and warmth. Flat stitched seams reduce chafing. Elastic cuff is of proper tightness and fitting on leg, do not worry about rolling down. Protect your foot against , rocks and sand, and grains at bottom prevent slipping. Perfect for like diving, snorkeling and walking on the beach, and suitable for both men and women. size - Code number - Foot length: S - 38-39 - 22-22.5cm/8.66-8.86inch colour:black Material:NEOPRENE Elastic material Package Contents: 1 * Pair Diving Socks Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.