Two-in-One Stirrup Baseball/Softball Sock (Used in Little League, ASA, Travel Ball, Babe Ruth, High School, Adult Rec Uniforms) 35% cotton Augusta Sportswear Two-in-One Stirrup Baseball/Softball Sports Socks. 43% Polyester, 35% Cotton, 16% Elastic. Cushioned Toe, Sole & Heel. 3 Sizes : Youth (7-9), Intermediate (9-11), Adult (10-13 & Older) Knee Length Used by Players in from Youth Little League, ASA, to Travel Ball, Babe Ruth, High School, Adult Rec Leagues