I purchased this at a store around this spring. The size is L. The sleeves can be removed with a ZIP, making it an interesting item that can be worn all season. The following is quoted from the official website. Product Name: LUNACY TRACKTION ZIP THRU TRACK JACKET Brand: P.A.M. perks and mini Size: L Retail Price: ¥51,700 Overview: 2-way nylon track jacket. Sleeves are removable and can be used as a vest. ・Contrast color curved panel switching on the body and sleeves. ・3M reflector print of the "P.A.M." logo on the center back. ・Digital print of "Gesture" on the dark gray contrast panel. MAIN: 100% Nylon LINING: 100% Polyester RIBBING: 95% Polyester, 5% Spandex Size (cm) L Body Width 65 Length 69 Sleeve Length 84 There may be slight individual differences in the size of the product due to printing and production. Please consider the above size as a guideline.