Quad Seven Premium Brand Blue V-Neck Short Sleeves Tee 6-7

Quad Seven Premium Brand Blue V-Neck Short Sleeves Tee is size boys 7. But my daughter said my grandson quickly outgrew it. I believe it shrank and maybe be a size 6 or even 5. Instructions say when washing: hand or machine wash cold. Water line dry. She always uses the machine on cold but throws everything in the dryer. Front has the brand name in designs and a gray bird in the background. Tee shows red stitching. Made in Bangladesh of 100% cotton. Armpit to armpit is 12” across front. Shoulder to hem is 16” long.