The Anon Tracker 2.0 Goggles are sized for kids to create a comfortable fit that's helmet and eyeglasses compatible. They work with Anon MFI® hoods, face masks, and neck warmers for seamless coverage from snow, wind, or sun. The cylindrical lens and flexible frame follow the natural curve of the face. Full-perimeter vents and our anti-fog treatment help maintain a clear, fog-free view come storm or sun.