I purchased this onesie for my baby girl to match the El Mas Guapo sweater that her big brother has. This onesie is so soft and great quality material. She is 6 months right now and I purchased the 6-12 month option. It first her comfortably and the material is stretchy so I'm sure she has plenty of room to grow. I love the give in the material since this little girl grows so quickly.