Hollis M-4 Mask rubber Built-in water bottle holder positioned

Built-in water bottle holder positioned in front of seat for added convenience

It works in the Freedom Track and folds forward when you don’t need it

5mm neoprene torso with 4mm arms and legs

The RK3 blade material is formulated to hold up in the toughest environments

Hollis M-4 Mask rubber Built-in water bottle holder positionedVisibility is the most important aspect of any dive. The M4 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 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. Frameless silicon skirt