This Baby hat bundle includes 4 Copper Pearl top knot hats and 1 Little Co. top knot hat. Little Co. says 0-3 months, however IMO it runs large. The Copper Pearl do not have a size but are very stretchy. My baby wore them up to 7 months. Rust colored one has the most wash wear, others are in excellent Pre-loved condition. Please see pictures for more details. Thanks for shopping!