XL long in the arms; 3 layers make for loose fit
I have worn the Intake Air 3 for a summer riding season in north Georgia, mostly on commutes. I am wearing it now during the fall / early winter as well. For summer, the mesh jacket is great - just like the mesh of the Flex jacket. For early fall, the rain / wind liner is OK, but if it gets warm at all, you'll sweat. If it gets cool (e.g. 50°F), a t-shirt won't be enough. I have yet to wear it with the polyfill liner. For the XL, the arms are long, but an L would've been too tight on my 5'9" 205lb frame.