I use a Pinlock shield with clear anti fog insert. The best antifoging system Ive encountered so far.

It doesn't keep glasses from fogging though but they clear up much faster than a fogged up shield does.

SOLD: 07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq NEW: 19 Goldwing Tour DCT