I wear ex-RAF green leather gloves for a few reasons:
1) Everything in the cockpit is sharp.
2) There is no heater. Everything in the cockpit is cold (I have the silk inners)
3) My hands sweat like a Grand National winner
4) Everything under the engine cowling is oily
5) The prop is always sharp and cold when I swing it (see items 1 & 2 above).
6) They match the green leather interior!