Review on Stylish and Functional: adidas Men's Essentials 3-Stripes Tricot Track Jacket by Jason Arkin

I bought the size small (I'm 183cm, 77kg - 6ft / 170lbs). It looks too baggy. I have another Adidas Essentials 3 stripe jacket that looks pretty much the same and fits me much better. The inscription "adidas". The armpit to armpit distance is 21 (if not 21.5) inches and the other 19.5 inches. This is probably good for muscular/tall athletes. Too bad Adidas doesn't clearly state the match between identical jackets. 21+ inch pit to pit sounds more like M than SI, I like this color but the fit isn't great and I'm returning it. It is very difficult to determine the fit from the Revain listing or the Adidas website.