WOMEN'S: Size US Shoe: (Small fits 6.5-8) (Med fits 8-10.5) (Lrg fits 10.5-12) If you're on fringe, trade down. REFERENCE SIZING CHART - MEN'S: Size US Shoe: (Small fits 6.-7.5) (Med fits 7.5-9.5) (Lrg fits 9.5 - 11.5) (XL fits 11.5-13.5) If you're on fringe, trade up. INSULATED: WETSOX Reinforced Fin socks feature a 1mm neoprene core and 4 way stretch, quick dry material for comfort in all seasons- adding targeted insulation for your extremities with no need to size up boots or fins. The perfect choice for scuba, diving, snorkeling, spearfishing, body boarding, swimming, kayaking, stand up paddle and other water sports. DURABLE & PROTECTED: These rugged socks feature a fully grided raised poly exterior for superior abrasion resistance, as well as heavy gauge nylon thread and flatlock stitching that has been laminated with an exterior layer of abrasion resistant fabric to extend product life and offer greater protection against rub. SATISFATION GUARANTEE: Your product includes a 60 day for-any-reason return policy and warranty. PROTECT AGAINST FIN RASH: No more blisters, cuts or chafe from fins or straps. Our ultra-thin, lightweight material means there?s no need to size up your fins. Our form fitting ankle height design fits snug to the skin and stays in place beneath your gear. Made in the USA or Imported. 50% neoprene, 30% nylon, 20% poly.

Best Sellers Rank: See Top 100 in Sports & Outdoors. : B077T6TVGR. Manufacturer: WETSOX. Date First Available: November 29, 2017. Package Dimensions: 14.33 x 7.87 x 0.83 inches; 3.46 Ounces.