This Colorful Rainbowface and monochromatic Mr. Gray socks pair is part of the Opposocks Artist Series designed by Nate Bear. We don't have to match to be besties!. Let's create a friendlier world. This pair comes with a #39 collectible PalsCard! On each card, kids can name their new Pals and learn how they met.. Details. Kids Socks 1-3 and 4-8 have No-Skid Grips for Safety. Size 1-3 Yrs Fits Most US Youth Shoe Size 2-7.5. Size 4-8 Yrs fits most US Youth Shoe Size 7-12. Size 9-12 Yrs Fits most US Youth Shoe Size 11-5. Quality thickness to prevent holes. Super stretchy, comfy socks kids love. Combed Cotton 76% Polyester 13% Nylon 9% Spandex 2%. Machine wash cold, tumble dry low for optimal care