I like these. We live in FL and my son needed some sleeveless onesies. They are pretty big. It says 3 months, but these things are swimmingly big. My son was premature and has growth problems, so he is very small generally, so I wasn't expecting them to "fit" necsessarily, but they do not seem liek theyd fit a 3 months old anyway? I don't know, that could just be us :/  They are a good quality though and wash well, and look adorable. Perfect for warm weather or layering!