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mwae
7
May 24, 2018
https://support.rab.equipment/hc/en-us/articles/115004387085-Sizing-Guide-Men Size M Chest 40" Waist 32" Arms 34"
The biggest issues with the Rab athletic fit,which i found : - you are normal size: after heavy meal the waist / belly show - if you are to big for your size, then the arms will be way to long
I normally use a L for the baselayer and a xl or l for the outer/mid like flux, al, nculeus.