Sizing is messed up! I'm 6'1” tall, 203lbs, with a 42.5” chest, 37” natural waist, and 34.5” sleeve length (dress shirt measurement). So, I follow the size chart for the Chore Coat,
Carhartt Brown Cotton Duck Active Jacket J140BRN-2X-TALL
Carhartt Men's Yukon Extremes Full Swing Insulated Coat, Black, Small at Amazon Men's Clothing store
Vtg Carhartt Barn/Chore Coat Blanket Lined Jacket Green Mens Sz XXL/2XL Tall USA | eBay
Carhartt [#103828] Duck Detroit Jacket. Big and Tall Sizes. | Hi Visibility Jackets | Dickies | Ogio Bags | Suits | Carhartt