Pearl Izumi does fit me in the sizing I expect.

True some of the higher end (pricier) jerseys look quite small, which for me to say that..is probably tiny for many folks.

Honest, cycling clothing, it's one of the rare types of clothing, where the size tag is in fact "small" or "extra small" for me and fits ok without major oversizing for me. Of course, sleeves always too long for me.