Acrylic,Spandex,Nylon It's great as a basketball gifts for boys!Also Great choice for Brithday/Anniversaries/Christmas/Thanksgiving/New Year/Festival gifts! PROFESSIONAL DYNAMIC ARCH DESIGN-Arch compression support and stability to reduce foot fatigue, keeps sports crew socks in place and provide extra protection against blister. One size fits most. STAND OUT FROM THE CROWD-A favorite amongst all basketball players, coaches and fans, we know you'll love these stylish socks! They're perfect for everyday use and make the ultimate gift or stocking filler! MIMIGO Socks in different colors, almost can match with all outfits in various colors. You won't be missed on the court whilst wearing multiple colors socks. DESIGNED FOR PERFORMANCE-Soft & Comfortable compression starting mid foot for plantar fascia and arch support, Lightly padded at the heel and toe, eliminate abrasion and foot stress,and relieving pain in the foot, such as Fiber Myalgia.Wicking design eliminates irritating odors, great for walkers and runners who feet sweat, soft fabric moves sweat away from your skin, keep your feet dry and comfortable. Increasing the comfort of wearing. ELITE MULTISPORT SOCKS-Calf high crew socks are suitable for different occasions because they have cushioning system. It's Cushioned Basketball Football Baseball Soccer Athletic Socks and can be used when hiking,running,volleyball,lacrosse,wrestling,outdoor sports and daily use.