Jefferies Sport Crew 6 Pk Sport Crew Half Cushion. Seamless toe for extra comfort. Ribbed top of keep the sock up. Economical 6 pr pack. 80%cotton, 17%nylon, 3%spandex Sock Size USA Shoe Euro Shoe Typical Age Newborn (0-4) 0-1 15-16 1-3 months Infant (4-5.5) 1-4 17-19 3-12 months Toddler (5-6.5) 3-7 18-23 1-2 years XS (6-7.5) 6-11 22-28 2-4 years S (7-8.5) 9-1 26-32 3-7 years M (8-9.5) 12-6 30-36 5-10 years L (9-11) 6-9 36-40 10-Adult XL (10-12) 9-13 40-45 Adult