This jacket is perfect for my 11month old son. It's Fall and the days are cooler so I was looking for something more than a sweatshirt, but less than a winter coat...and this jacket is perfect. It's not bulky.. so when I put him in his car seat with it on its not a struggle to get him buckled in. The design on the shoulders is adorable and it fits true to size. I bought the 12 month size and he's 11 months...fits just right. It's the perfect Fall/early spring jacket!!!