buckle closure?Best Performance Ankle Socks: Made of premium 96% Polyester and 4% Spandex without irritating your skin of the feet. High quality material with extensibility and good elasticity makes the socks so soft and comfortable to keep your feet dry.?Features: Max Cushioning + Reinforced Toe and Heel + Arch Support + Heel Tab + Mesh Zones for Breathability + Moisture Wicking + Long Lasting Durability + All Seasons = Perfect Athletic Socks?Extraordinarly Comfortable: These Low cut socks constructed with soft plush sole cushioning for adding comfort, reduce sock and feet pain during sports or daily activity. Moisture-wicking footbed and ankle compression to reduce fatigue, Blister Control, and keep feet comfortable and dry.?Size&Occasions: Sock size 10-13/ Shoe size 7-12. 6 pairs per pack. FBA shipping.Best for all varieties of outdoor activities. Such as casual, workout, camping, running, walking, golf and traveling in all seasons.?Notice: Finest product and best service!!! If you have any problems, please contact us and we will solve the problem in the shortest time possible.