I'm a large belly man - [5'7"- 230lbs] chest 45", waist 46", Beer belly 48.5"Ordered an XL=chest 48"-50" - fits my belly perfectly, length was good too, little large in shouldersbut that's my body type issue; not the blazer. Thin/light-weight. very wrinkled due packaging, hoping that's easily fixed. I ordered both blue and dark-blue. Like them both, will be wearing with boots & jeans causallySee full review