Einstein is the world's most famous scientist for a reason – he had great ideas, great hair and his name is synonymous with genius! These socks feature a seamless toe construction, which means no annoying toe seam to irritate your kid's sensitive feet. Three sizes: age 2 to 4 fits kids' shoe sizes 6 to 11, age 4 to 7 fits kids' shoe sizes 10-1Y, and age 7 to 10 fits kids' shoe sizes 12-5Y. 59% cotton, 32% nylon, 2% spandex. Made in China.