Ermengildo Zegna 100% Silk Blazer Mens 40R ZegnaSilk 2 Vent Dark Gray. Preowned. At a length of 28.5", this blazer is right on the edge of 40R and 40S. Please see pictures and measurements and ask any questions before purchasing. We do our very best to inspect, photograph and document the item and any flaws or defects. Please note that the color on your monitor may differ slightly from the actual item. Please let us know if you have any questions. Measurements are noted in the photos and are taken as accurately as possible. Please compare measurements with something you currently wear to ensure a better fit. Shoulder To Shoulder Seam= 17.5" Sleeve (Outside of arm shoulder seam to bottom hem) = 23" Pit To Pit X2= 39" Waist (Across mid section, top button)= 38" Length (Collar shoulder seam to bottom hem) = 28.5"