Details, Size & Fit. Effortlessly cool and urban, The ONEBYONE School Yard Acid Jumper is made from pure cotton with an acid-wash finish. Team with all-black pieces for understated style. Our model. is wearing a size large jumper, and usually takes a size medium/39 shirt. He is 6’2” (188cm) tall with a 39” (99cm) chest and a 32” (81cm) waist. Length: 79cm Regular fit 100% Cotton Ribbed, crew neckline Single chest pocket Acid-wash finish.Machine wash cold. Do not bleach. Tumble dry low. Iron low. Do not iron print. Model Wearing: Size L.Length: 79cm.Material: 100% Cotton.SKU: ON124AA02HMR.