Open Box Hollis M-1 Dive Mask Snorkeling Bags The 7mm Titanium Boot features

The 7mm Titanium Boot features TruFit technology

Extra-long heavy-duty back zipper for easy donning and doffing

we recommend sizing down

Multiple Dive modes: Scuba

Open Box Hollis M-1 Dive Mask Snorkeling Bags The 7mm Titanium Boot featuresPlease note this is an OPEN BOX offer. The item will be in new condition, but may not have original packaging. PRODUCT DESCRIPTION Visibility is the most important aspect of any dive. The M1 mask raises the bar for optical quality and distortion free vision. This lens is an extra clear glass which is valued for its attractive appearance and optical qualities. The low iron content produces a higher light transmittance and a reduced green tint inherent