This jersey I have tried both in M and L in. Here is my gripe comes into play: Size M sits at 1.82 and 75 kg body toned emphasized, but comfortable. The sleeves are however seeeeeehr borderline (arm circumference 38/39). It spans beautiful, but is still okay. Then I thought to myself, I'll take the L. So tried and been disappointed once. It sat like a nightgown or a sack and had almost as tight sleeves. Actually unbelievable that size jump from M to L.
Therefore I have decided for M. An alternative would be, of course, the Authentic jersey in Gr. L, but not for almost 150 ...