Men button down Shirt Size Chart: XS S M L XL 2XL 3XL 4XL 8 Types of shirt size are available, XS=bust 49cm(19.3")=Length 70.5cm(27.8“)=Sleeve Lenght 62.5cm(24.6"); S=bust 52cm(20.5")=Length 72cm(28.3“)=Sleeve Lenght 64cm(24.6"); M=bust 55cm(21.7")=Length73.5cm(28.9“)=Sleeve Lenght 65.5cm(25.8"); L=bust 58cm(22.8")=Length 75cm(29.5“)=Sleeve Lenght 67cm(26.4"); XL=bust 62cm(24")=Length76.5cm(30.1“)=Sleeve Lenght68.5cm(27"); 2XL=bust66cm(26")=Length78cm(30.7“)=Sleeve Lenght70cm(27.6"); 3XL=bust70cm(27.6")=Length79.5cm(31.3“)=SleeveLenght71.5cm(28.1"); 4XL=bust74cm(29.1")=Length81cm(31.9“)=Sleeve Lenght73cm(28.7"); Please carefully choose your size according to our size chart ( Not the Amazon Size Chart )";Please refer to our size chart before purchasing. Product Detail: Material:82% Polyester + 18% Spandex Occasion:Early Winter, Fall autumn spring summer All Season Weather to wear,casual,business,work,Home,Outdoor,Indoor,Vacation, Sport. Tips: -Please check out sizes chart in Description Before Purchasing.(NOT Amazon Size Chart!) -Please allow little color difference due to different camera or light environment -Due to different measurement methods, it is reasonable for 1-2cm size deviation. -Dip and wash room temperature.(Machine Washable/Hand Wash)