i'm not sure if i should get a small or...
i'm not sure if i should get a small or an extra small.. i am 5'8 and 145lbs..
I would get the small or even a medium. It depends on how you like your jackets to fit. Measure your self against the following scale; Small is: 36"38" and Medium is: 38"40". If you chest is smaller than 36" then run the XS.