Description:Non-slip bottom, durable and waterproofWarm, elastic and comfortable to wearNot harmful to users, safe and comfortable materialPerfect water sport accessory for protecting your feet from scratch and prickHealthy barefoot walking and hard to be come off in the water, very suitable for divers and body surfersPerfect for scuba diving, surfing, bathing, swimming, fishing, free diving, snorkeling, spearfishing and other beach sportsSpecification:Material: Neoprene + NylonThickness: 1.5mmSize Chart:Size SLength: Approx. 20.5-22 cm/8.07-8.66 inchChina Size: 33-35, UK Size: 1-2, US Size: 1.5-4.5Size MLength: Approx. 22.5-24 cm/8.85-9.45 inchChina Size: 36-38, UK Size: 3-4.5, US Size: 5.5-7Size LLength: Approx. 24.5-26.5 cm/9.65- 10.43 inchChina Size: 39-42, UK Size: 5.5-7.5, US Size: 6.5-8.5Size XLLength: Approx. 26.5-29 cm/10.43-11.42 inchChina Size: 42-45, UK Size: 7.5-10, US Size: 8.5-11Package Includes:1 Pair Scuba Diving SocksNote:Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!