Ski & Snowboard Goggle Bundle. The Anon M5S is the small-fit version of the M5 - same toric lens shape, same Magna-Tech lens changes, same enormous field of view, in a narrower and shallower frame built for small and medium faces. If you wear a small or medium helmet, this is the M5 you want. Every set ships with a bonus low-light lens, an MFI face mask, a Magna-Tech storage case, and a goggle sock. Note: this is the smaller-fit frame - see the Anon M5 for the standard medium-to-large frame.Features: Small-Fit Frame - Narrower and shallower than the M5 for small and medium faces. Magna-Tech Lens Change - Rare-earth N52 magnets make swapping lenses effortless and secure. Perceive Lens Technology - High-contrast, terrain-defining clarity in any light. Toric Lens Shape - Spherical-style optics with a huge field of view. Integral Clarity Anti-Fog - Exceeds global anti-fog standards for lasting clear vision. MFI Compatible - Magnetic face mask seals to the goggle without blocking airflow. Bonus Lens Included - A second Perceive lens for low-light and storm days.