Every Now and Zen Socks by Socksmith are the perfect gift for that socks lover in your life. These koi themed womens crew socks come in color and fit U.S. women’s shoe size 5-10.5. Made of 63% Cotton, 34% Nylon, 3% Spandex for comfort and durability. A pair of these cool Koi novelty Socks will certainly give any wardrobe an instant upgrade. Machine Wash Cold With Like Colors. Do Not Bleach. Tumble Dry Low Heat.