I am selling this item because my child has outgrown it. ● Size: 150 ● Color: Black ● Model Number: JSTD-771 ● Product Description This product uses a developed material that maintains 4-way stretch, lightness, sweat absorption, and quick-drying properties. The armhole design reduces stress during arm-raising and rotational movements. The fabric on the sides uses a developed material that does not fray even without seams, reducing bulkiness in the armpit area.