Vintage 70s Men's Grey Vegan Suede Blazer Jacket Sport Coat

Vintage 70's Casino Sport Coat I am not sure if this is real suede or a faux suede ...if it's faux, it was done well. No size tag See Measurements for fit: 21" inches pit to pit 30.5" inches long (middle of the shoulder to bottom hem) 20" shoulder to shoulder across the neck flat lay (see photos)