Made of 100% Cotton. These creepers are perfect for innerwear, outerwear - "any-wear!" Everyone will get a kick out of the clever animal sayings and designs. Snug fitting with comfortable stretch, pajama conveniently snaps at both the crotch and shoulder. Print is permanently dyed into fabric and will not fade or run. Machine wash cold with like colors. Non-chlorine bleach when needed. Tumble dry low. Remove promptly. Warm iron as needed. Sizes run as follows: 6 mo, 12 mo, and 18 mo.