I purchased these from the Rakuten Ichiba website, "Tabari Fiber Processing." High Socks, Set of 3 Size: 16-18 Color: White (From the website) Length (from heel to opening): Approximately 27 cm Materials: Cotton, Acrylic, Nylon, Polyurethane Features: Made in Japan, Antibacterial & Odor-Resistant, Absorbent & Quick-Drying These high socks use stain-resistant yarn, making them easy to clean when washed. ----------------------------------- I used one pair for my child's school event, and they stayed up without slipping down, and the fit seemed fine. It's been over a year since I purchased them. I've stored them in the bag they came in, but there may be some small overlooked stains. Please understand this before purchasing.