The knitting method is a 3×1 ribbed knitting machine, which is knitted on the same old-fashioned knitting machine as loose socks. After knitting it large, it is shrunk by processing to reduce tightening as much as possible. Regardless of the season, warm your ankles, calves, and knees, However, it is not stuffy and supports relaxation and a good night's sleep in your room. A must-have item in combination with socks! Because it is an Odoas product made from cotton, a rare and high-quality raw material, into a magic thread, I think you will experience a comfortable fit that you have never felt before. ●One-size-fits-all Length 50-55cm Opening: 16-47cm, Hem opening: 16-37cm ●Material ・Cotton 95% ・Polyurethane 3% ・Polyester 2% ●Made in Japan