I bought a size M white sweatshirt as part of a Halloween costume for my four year old. He's 4 ft tall and weighs 47 lbs (maybe the size of an average 5-6 year). It was a very cold evening so this was perfect for wearing layers under his costume instead of covering it up with his winter coat. I'm hoping that he will wear it again next year if the weather is cold again. No fraying or pilling after multiple washes this winter.
Rating: [5 of 5 Stars!]