Hey all,
The lightest mask that I have held or worn is the Honig's K82(?) double bar mask w/leather pads. The next closest, and it's very close, is a composite mask from All-Star that our LL District UIC has. Both are lighter than ANY Wilson or +Pos mask that I have held.
Just for clarification, we both use these masks in an adult league that we both umpire in, not just LL.
LomUmp