Many years spent designing and testing complex electronic systems. Measuring and testing was excruciatingly long and detailed process. The last hurdle was performance in the intended environment. Measurements provided a reasonable predictor of performance, but never 100%.
Much respect, good example of being legit. The bogus measurements that are used to promote a product or promote the person doing the measuring=bogus.
Measurements are what they are, if the suit is a 38 and I'm a 38 will it fit. Will I like it. who knows. Will my spouse like it? LOL.
You got to try the suit on, look in the mirror, and ask your wife.
You gotta bring gear home, audition it, and probably ask your wife (LOL on the WAF). There is NO measurement that can predict how a product will pass the hurdles.