This is a Sang Moo Sa martial arts uniform in a unisex size 1 from Best Martial Arts Supply.
It is white and features half sleeves and a World Class Taekwondo logo on the front with an enlarged one in the back. This has all white drawstring pants and a white belt.
It was made in China with 45% Polyester and 55% Cotton.
The shirt measures 25" from the top of the neck line to the bottom hem, 21" from underarm to underarm, and 19" from shoulder to shoulder. The pants measure at 11", with a very stretchy waistband. They measure 13" from the inseam to the waistband, and 19" from inseam to ankle cuff.
This uniform comes in good pre-owned condition.