Red Tartan Plaid Wool Single Button Collarless Blazer by ChausChaus Blue Green Red & Gold Tartan Plaid Single Button Collarless Blazer Jacket. There is no size tag but based on actual measurements I believe it to be a women's size L or XL. Please go off actual measurements to ensure an accurate fit. Great vintage condition no flaws to note. Actual measurements: Armpit to armpit approx 21" Shoulder seam to shoulder seam approx 18" Length down the back approx 29" Across the waist area approx 21" Sleeve length from