509 Sinister XL7 Ignite S1 Goggle

Is 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 it’s the frame-integrated fan that provides reliable fog prevention? Seeing is believing—sometimes literally. Features: 20% increase in face foam for 2X+ helmet shell sizes  Ignite heated inner lens - Durable PC outer lens with multiple coatings for premium clarity and performance - UV inhibitors, Hardness and anti-scratch, and Oleophobic coatings  20% increase in face foam  XL version seals in larger helmet shell sizes (XL, 2X, 3X, 4X)  5MAG lens retention system  Soft goggle frame for unparalleled comfort and fit  Hard lens frame insures an optimal fit, and a great sealing with 5MAG Lens Retention System  OTG, Over The Glasses, compatible  Shuttered Venting in frame scoop air in or closes off flow  Easily replace len