Good for winter, heavy enough to wear on their own. Good size, a little bigger than expected but it really is a good thing to me. Also, nice big neck hole so I don't feel like I am ripping my baby's ears off to get them on in the morning. ;)Got 4T for a 30 pound 2 year old. She's about three feet tall. They are a comfy fit almost baggy, not tight or slim, but she and I both love them. Didn't shrink much in the wash.See full review