Winter Neck Warmer. Our do-it-all-weight neck warmer for everyday coverage. MFI compatibility ensures a seamless connection with your goggles. The Anon MFI Lightweight Neck Warmer protects your face and neck from wind, sun, and cold with our exclusive magnetic connection that seals the face panel to any MFI-compatible Anon goggles. Lightweight fabric offers the perfect amount of warmth and breathability for cool to mild conditions. The vent panel at the mouth ensures fog-free performance. The magnets in this balaclava are easily removed for machine washing or when you choose to wear it with non-MFI goggles.