Hollis M-3 Mask The Hollis M3 Mask provides distortion free vision and superior fit. This low profile design uses a rigid frame and two lenses with an extra clear glass which is valued for its optical qualities. The low iron content produces a higher light transmittance and a reduced green tint.Four way buckle design adds to superior comfort and storage.Available Black or White frame100% Pure Silicon SkirtSaint-Gobain Diamant - Crystal Clear LensesWide Vision and Low Volume
