3Line Slub Crew A crew-length update to the classic Stripe Short Slub Socks, this version offers the same beloved comfort with added coverage. Crafted with thick, durable fabric, they provide a sturdy yet soft feel. The timeless triple-stripe design adds a bold, sporty accent, making them a versatile addition to any wardrobe. Construction : Rib knitting Composition : 64% Cotton 30% Acrylic 5% Polyester 1% Spandex. COO : Made in Japan Size guide : Size Medium : Length 10.5" and fit best for 25-28cm feet, approximately US Men's size 7-10 Size Large : Length 11.5" and fit best for 27-30cm feet, approximately US Men's size 9-12