When the economy tanked, RL decided to cut inventory by eliminating the sleeve length. Therefore, it is now more of a generic sizing. For example, if you are a 15 neck, a coordinating sleeve length would be 32-33 sleeve length. Just an FYI, they are cut to have a little extra fabric in the arms and usually have to be hemmed. If you live near a RL store, this is done for free if you buy the shirt in the store, if its your own goods I believe it ranges from $12-15 to hem.