My 7 year old son was 10/12 from Target and they were getting too small. I ordered them in size 14/16 and they are quite small. Green Adidas over gray Hanes 14/16 boxers. Haynes was a perfect match for him. Adidas was too small. He is 65 pounds and 52 inches of slim build. He really liked the feel of the material, he says it's soft, the waistband is stretchy, part of the legs are narrow (he usually wears skinny pants and they are baggy, so it was surprising how narrow the legs were). The legs also have a rather short inseam.
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