The Anon M4S goggles (Cylindrical) + Bonus Lens + MFI® Face Mask offer the M4's widest field of view via cylindrical lens design, with the added versatility to swap between cylindrical and toric lenses using Magna-Tech® magnets. MFI® face mask integration creates a seamless, gaper-free interface with Anon helmets, while the low-bridge fit frame is engineered for smaller face profiles.

• Cylindrical M4S: Wide field of view, Magna-Tech® precision, scaled-down for smaller faces.
• Toric or Cylindrical Lens: Industry first: innovative frame accepts toric lens for maximum peripheral view, or cylindrical lens for wide field of view in a low-profile aesthetic. The choice is yours. Toric accessory lenses are sold separately.
• Dual Perceive Lenses: High-contrast terrain-defining optics across two conditions, both in the box.
• MFI® System Integration: Bonus Magnetic face mask for a gap-free goggle connection included in the box.
• Anti-Fog: Anon’s anti-fog coating performs 5x better than the industry standard.
• All Anon products are backed by a 1-year warranty from date of purchase.