National Geographic Fitted Low Cut 2 mm Fin Socks, Booties for Snorkeling, Scuba, or Swim MAXIUM COMFORT -Fitted and shaped neoprene for Snorkeling, Scuba Diving, Swimming, Surfing or Sand Volleyball KEEP YOUR FEET WARM - 2 mm neoprene provides insulation for cooler waters. NATIONAL GEOGRAPHIC QUALITY - Non Skid Pattern On The Sole Make For Improved Footing. AQUA WATER SOCKS SOLD AS A PAIR - Unisex , Great for Men or Women Available in 7 sizes XXS-(mens 5/6) XS- (mens 6/7) SM-(mens 7/8) MD-(mens 8/9) LG- (mens 10/11) XL-(mens 11/12) XXL(mens 12/13)*** womens - XXS-(womens 6/7) XS- (womens 7/8) SM-(womens 8/9) MD-(womens 9/10) LG- (womens 11/12) XL-(womens 12/13) XXL(womens 13/14)