Spyder Imagine (Black)
Check-it 15* Assault Block (Black)
Black Magic Reg (Chrome)
Maddman Rocket Valve
Maddman Spring Kit
soon to have Spudnuk'l LP Bolt and Dark Horizons Striker
Flexible lower half, thermal lens.
nothing that I can think of.
This is a great mask. The thermal lens hasn't fogged up on me at all and I've played in both wet, humid weather and dry and warm. The flexible lower half does help deflect the balls and prevent breaks, however I would recommend using a neck guard if you have a flexible mask like this, as it does tend to deflect the balls down into your neck. They don't hit as hard as they would a direct hit, but after all, your neck is a vulnerable spot on your body so why not protect it.
I would recommend this mask, it helps deflect the balls shot at the lower half of your face, keeping you from eating paint and the lens doesn't fog up.