TCK Sports Baseball/Softball Adult Belt & Socks Combo Set 95% Polyester, 5% Rubber Matching Set of Socks and Belt Medium size socks (Men's 6-9 / Women's 7-10), come with an Adult size belt (waist 30-46 inches) Large size socks (Men's 9-12 / Women's 10-13), come with an Adult size belt (waist 30-46 inches) Multi-sport sock design works in any competition Matching elasticized baseball softball belt keeps you comfortable in the game