DESCENTE ATHLETIC Aero Stream H/S Shirt. This shirt features ventilation on the back to take in outside air. The ventilation action caused by running promotes air circulation inside the garment. The fabric is a newly developed absorbent and quick-drying material, and the interaction with the ventilation airflow enhances the cooling effect. Quoted from the official website. Size: S Material: 56% Polyester, 44% Composite Fiber (Polyester) Manufacturer Item Number: DJMTGA58 Functions: High breathability / Absorbent and quick-drying Country of Origin: China Retail Price: 6600 yen The condition is good, but please consider only if you understand that this is a used item.