Trimfit Baby Cotton Infant Bootie (Pack of 6) 6-pairs infant cotton w/ trim on cuff booties 75% cotton / 21% Nylon / 3% Spandex / 1% Rubber. Designed in USA Comfortoe technology Machine wash cold with like colors. Only non-chlorine bleach when needed. Tumble dry low. Do not iron Trimfit. Wear Tested since 1921