Description:Non-slip bottom, durable and waterproofWarm, elastic and comfortable to wearNot harmful to users, safe and comfortable materialPerfect accessory for protecting your feet and prickHealthy and hard to be come the water, very suitable for divers and body surfersPerfect for scuba diving, surfing, bathing, swimming, fishing, free diving, snorkeling, spearfishing and other Specification:Material: Neoprene + NylonThickness: 1.5mmSize Chart:Size SLength: Approx. 20.5-22 cm/8.07-8.66 inchChina Size: , 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.Package Includes:1 Pair Scuba Diving Socks(10 Pack)Note:Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks