[Hard2Fit]

I too am looking to buy a new navy blazer and am leaning towards a 3B Brooks Brothers. I'm interested in the BB BrooksCool models because I live in DC and our summers are brutal (though I also like the Country Club 2B). Is there any reason to get a 2B over a 3B? The 2B seems more common (traditional?) but I prefer 3B suits and have never owned a true 3B blazer.

https://www.brooksbrothers.com/IWCa...ection_Id=217&Product_Id=972285&Parent_Id=202
https://www.brooksbrothers.com/IWCa...d=217&Product_Id=972327&Sub_Product_Id=972334
https://www.brooksbrothers.com/IWCa...d=217&Product_Id=807226&Sub_Product_Id=807233

Let me add I'm tall and thin and wear a 39L. Any comments/suggestions/advice would be appreciated.