This vintage blazer was made by Ratner California Clothes under the Riviera label. It is blue flannel, with a US Naval academy patch on the breast pocket, and US Naval Academy buttons. The jacket is half lined.
Chest (pit to pit): 23″ (doubled = 46″)
Shoulder to shoulder: 19″
Sleeve (shoulder to cuff): 24″
Length (base of collar to hem): 28″