This week I added virtual arms. They're disabled by default, but they can be enabled in the "Game Options" menu.
They won't perfectly match your real life arms, but I think having some form of bodily presence can help increase the feeling of immersion. Turning the arms on may add some extra load to your CPU and graphics card.
[Note: you can't really tell from the GIF, but there is an area between the sleeve and glove that is still "invisible" even with the arms on]