Hollis M4 Mask

The Hollis M4 Mask delivers rugged durability in a reliable frameless dive mask. Whether you use this single lens mask for diving, snorkeling, freediving, or just playing in the water, you’ll appreciate the low volume, low profile style. With a soft, silicone skirt and adjustable mask strap, you’ll get a great seal and the perfect fit. ‘Cause what else is there? Oh, excellent peripheral and vertical vision – yeah, it’s got that too.
 
Hollis M4 Mask Features:

Frameless
Silicon skirt
Low volume
Low profile
Rugged mask box and adjustable mask strap included