This is a baseball tee from Eastbay in youth size large.
It is red and grey and features long sleeves, a round neckline, and a straight hem.
The shirt measures about 14" from underarm to underarm, 22.5" from the top of the shoulder to the arm opening and 23" from the back of the neck to hem when laid flat.
This item was made from an 84/16 polyester/spandex blend.
It is in very good pre-owned condition.