MADE IN THE USA: Twin City Knitting (TCK) was founded in North Carolina in 1961, where we still operate today. With over 60 years of manufacturing experience, our passion, know-how, ingenuity and design shows through in every pair of socks we make. When you purchase a TCK sock, you can expect high-quality and you can feel good about supporting American manufacturing and directly supporting American employees. PERFECT MULTI-SPORT SOCKS: These solid multi-sport over the calf socks are an ideal weight and length for baseball, softball, and football. ACCURATE SIZING: TCK Sock Size: Small - Youth Shoe Size 12-5, Medium - Womens Shoe Size 5-10 Mens Shoe Size 5-9, Large - Womens Shoe Size 10-13 Mens Shoe Size 9-12, X-Large Womens Shoe Size 13+ Mens Shoe Size 12+ PERFORMANCE FEATURES: Moisture Wicking, Arch and Ankle Compression to reduce fatigue, Blister Control, Lightweight, Double Welt Top, Heel/Toe Design, Advanced Yarns Help Control Odor PERFORMANCE MATERIALS: Fiber Contents: Polypropylene, Nylon, and Lycra Spandex These high performance, moisture wicking, multi-sport over the calf socks are an ideal weight and length for baseball, softball, and football.