Shirt size is a little small compared to the size. Fabric is soft and stretchy and would likely wick well, we didn’t test that out because it’s already cold here. Would recommend as a great athletic shirt or a casual short for a smaller child.

These shirts are SO SOFT and plain colored which is a huge bonus. We dislike all of the logos and characters. My son is a true size 6/7 and we went with a Medium and I'd say its perfect. I would size up to give some room for growth.