Brooks Brothers 346 Stretch Wool 2 Button Blazer 40R Beige Tan Sharkskin Tag 42R Slim Fit can be worn as a slim fit 42R 2 Button 1 Vent 22" Chest (Measured Pit to Pit) 20" Waist of jacket (Measured Across Top Button) 24.25" Sleeves  31" Length (Measured From Bottom of Collar to Tail) 19.25" Shoulder 1" Sleeve Hem (Extra Material to Lengthen Sleeves) Pristine like new condition meticulously looked over no visible tears, stains, or smells. Measurements are taken with garment laid flat. All of our menswear have a universal Classic Measurement, that is why there can be a difference between tagged and titled measurement.  Regardless of what the tag might say to get the sizing of the jacket I doubled the measured pit to pit portion and subtracted 4 inches (traditional measurement)and rounded up to the nearest even number.  For length I measured the back of the jacket short is under 30 inches regular is 30 - 32 inches and long is anything over 32 inches.  Please see measurements in description and compare to your size.  Please take a moment to compare the measurements above to a blazer/sport coat/suit jacket you already own to ensure proper fit.  Most preowned menswear have been altered in some way 01F15