The size 5/6 is a little on the large size but I have not washed it. If it does not shrink we can wear a long sleeve underneath until spring. The cotton fabric is substantial and not thin. It is  nice t-shirt in a true red. The gold transfer is NOT metallic. To me, it appears to be so in the photo. The "gold" is a mustard color and is thin in certain areas-like the circle in the middle. I have taken off a star for this. My six year old son will be thrilled regardless and that is why I am keeping it. Shipping was relatively fast.