Hollis M4 Mask
Hollis M4 Mask
When choosing a mask, fit and field of vision come first. The M4 Mask gives you the best of both worlds, fitting a wide variety of faces and offering superior peripheral and vertical vision. It is low profile, stows easy and carries an excellent value.
Features
Frameless silicon skirt
Rugged mask box and adjustable mask strap included
Increased vision and low volume