The Sport Sock is an updated athletic version of the 2UNDR 70 performance sock. Constructed at a 70-degree angle that promotes the optimal flex angle for comfort and performance in most non-bedroom activities. The Grip Dots have been removed on these casual performance socks. Now with a cotton blend for breathability and softness 50% Polyester | 30% Cotton | 15% Acrylic | 5% Elastane Seamless toe closure Compressive arch support Targeted ventilation Large heel pit Cotton blend