Say yes to the gilet
I wear size L for my race jersey so i got the same size, and the fit is perfect! i love the fabric, it does its job and it looks great! If you don’t stuff your back pocket jersey and want it to be aero fit, get a size smaller.
Rated 1 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is Fits True and 2 is Fits Large