6-12 month. Lined for warmth, outside is like a faux fur and the inside lining is more of a silkier texture for babys sensitive skin. Officially licensed Animal Planet Collector's Edition Costume Soft and Cuddly! Includes: One piece fully lined coverall, separate fully lined hat, and snap crotch detailing. Velcro opening in back. Only worn for 1 hour for photos, never worn outside.