Details, Size & Fit. Be casual, be cool in The Spark Polo Shirt from Jack & Jones-cut from a premium cotton fabric in a classic polo design. Featuring a contrast grey marle section to break up The shirt. Our model.is wearing a size medium shirt, and usually takes a size medium/40 shirt. He is 6’1” (186cm) tall with a 39” (99cm) chest and a 33” (84cm) waist. Length: 70cm Straight fit 100% Cotton Navy shade; grey marle section Three-button packet Collared Short sleeves Pocket on chest.Machine wash. Length: 74cm.fabric / material: NA.Material: 100% Cotton.SKU: JA792AA34QBD.