Bought a 9 month jacket for my 6 month old. Plenty of room to grow for her. Perfect for cool mornings on the porch, very light weight.It's a good light summer night jacket. Very thin, kind of on the smaller side.Bought this for my daughter as a little zip up to wear in sunny southern Cali. It’s perfect material and not to thickIt's very thin, no lining. So something to keep in mind, otherwise very nice product. The white zipper is a nice accent as well. I bought this for my son to wear at day care where the rooms are cold so it works for that, but a little thin.Great quality, great prices, but just too small. I ordered a 18 month size for my 12 month old, needed to reorder a size 24 month. Other then that, product is great!I bought the 24 mo size. It fits my 16 mo old perfectly. I did think it was going to be sweatshirt material, but it is a very thin fabric. It is cute though and works over a tshirt for the spring.Thinner than expected (thinner than tshirt material) but still works as a layering peice. Fit is nice, good length for longer babies. Only odd part is hood is huge in 3-6m size.I love this baby sweatshirt. It is the perfect light weight for the change in the season. I like having my girl in layers since the mornings are still a bit chilly. I also like that it is a solid color so it can be worn with any outfit and not completely clash. Not super important but a bonus. :)