MOGU Men's Double-Breasted Belted Twill Trench Coat Button Fly closure Please choose the right size based on your body chest measurement from the size options. This jacket is designed to fit a slim torso. If you have a wider waist than chest, the jacket might be snug.if you want to wear a blazer inside please order 2 sizes up Double-breasted Trench Coat Featuring Functional Gun Flap and Adjustable Belt Wash separately, hand washing in cold water is recommended. Low-temperature ironing okay. Do not bleach Fine quality fabric at unbeatable price