WANSHIYISHE Men's Casual Pullover Sleeveless Hooded Vest Cotton+Polyester Fiber Asia Size Unit is runs samll,please go up 1 size than you normally wear on U.S Size, If you are not sure about your size, please refer to the size chart listed below US X-Small=China Medium:Length:24.41"(62cm), Chest:32.28"(82cm) US Small=China Large:Length:24.80"(63cm), Chest:33.07"(84cm) US Medium=China X-Large:Length:25.20"(64cm), Chest:33.86"(86cm) US Large=China 2X-Large:Length:25.98"(66cm), Chest:34.65"(88cm),