My baby was 2 months early and weighed less than 4 lbs. fit was good and shipping was fast... only 2 days. She also got back to me quickly when I had a question.
This item is super cute but runs big. I ordered the up to 8lb size onsie ...my son is 8 1/2 lbs and it is still wayyy to big for him. I washed it and dried it in hot water too. Definitely order a size smaller.