I am almost 62 and weigh right at 150 pounds. I like the way the medium fits me (not a lot of loose material in body or arms). I use it when I have been out and find that I need a jacket. It fits neatly inside of my jerseys back pocket.
As i couldnt fit the jacket i couldnt rate it. 1 star for fit. It is not a fair rating if this fits you. Ordered a large. All fit well except the armpits. Too tight. Got an XL. Still too tight. Gave up on this jacket.
I am 5.11 39 chst. 162lbs. WB was great with the returns. Pity it didnt fit me. Looked like a nice bit of kit.