I've got proteus and invision......... depends on which tourney we are in (invision matches the sunderland colours).
THe invision is superb......... barely feel them, very secure and good field of vision. The proteus is even better, good hearing with them too............ draw back is just like le-pig says, you can still take a nasty shot in the mouth. Also, if you have a long face/big chin, then it can actualy pop out when you are shouting........ nasty if you cop one in the chin.