SINISTER XL7 IGNITE S1 GOGGLE BLACK OPSIs the coolest thing about the 509 Sinister XL7 Ignite S1 Goggle its heated inner lens for premium vision clarity? The 20% increase in face foam for 2X+ helmet sizes? The quick-change magnetic lens connection that lets you easily adapt to changing light? Or maybe its the frame-integrated fan that provides reliable fog prevention? Seeing is believingsometimes literally.