Hollis M-1 Frameless Mask Drybag Lightweight Techno-Polymer Material for Less

Lightweight Techno-Polymer Material for Less Cumbersome Dive

this material offers improved flexibility over current butyl trilaminates

Full size dive bag

Anodized aluminum heat sink

Hollis M-1 Frameless Mask Drybag Lightweight Techno-Polymer Material for LessThis products Overview Visibility is the most important aspect of any dive. The M1 Mask raises the bar for optical quality and distortion free vision. The extra crystal clear Saint Gobain Diamant tempered glass single lens is valued for its attractive appearance and optical qualities. The low iron content produces a higher light transmittance and a reduced green tint inherent in other glass. This makes the lens distortion free and helps improve color