Vintage Givenchy Men's Navy 3 Button Wool Blazer Sport Coat Suit Jacket 48L

There is no size on the jacket but based on the measurements I think it is a 48L Tag style Preppy, academia, school girl, business casual, occupational, work, career, office, workwear, 2 Academia, preppy, scholar, college, nerd, university, sophisticated, professional, dark academia, light academia, 3 Business, sophisticated, office, modest, preppy, work, occupational, professional, teacher, career, formal, dressy, minimalist,