The Anon MFI® Wool Hellbrook Clava is a midweight balaclava featuring the adaptable coverage of a hinging MFI face mask and the breathable performance of wool. The low-profile design fits comfortably under your helmet. The hinging MFI face mask magnetically connects with MFI-compatible Anon goggles for seamless coverage from cold, stormy conditions and folds out of the way when not needed.