Details, Size & Fit. This Derby Day staple by Jack London is perfect for Spring racing. The Black and White POW Mod Jacket has a slim fit design and Prince of Wales Check which can be easily matched back for both formal and casual occasions. Our Model wears a size 50. He is 6'2'' (189cm) tall, with a 77.5cm waist and 104cm chest. Single button closure Notch lapel Straight flap pockets Welt chest pocket Four mock buttons at cuff Double back vent Lapel button hole.Dry Clean Only.Material: 98% Wool, 2% Polyester.SKU: JA108AA55YLK.