I love this little sack . Snuggly and warm and adorable . we use it as she first Halloween costume and it be perfect for chilly October evening . my only complaint be that it run a bit small -- ours be size 0-6 month and it barely fit she at 3 month and she be on the small side . particularly , the hat be super small . she have a little pin-head -lrb- 25th percentile circumference -rrb- but the hat just barely fit . so be careful if you have a big-head baby . other than it run a bit small compare to how it be label it be a fantastic product .