Hollis M4 Mask meta-size-chart-fourth-element-dive-boots-size-chart helping to reduce abrasion and

helping to reduce abrasion and friction that cause your feet to become sore

CRYSTALVIEW OPTICAL GLASS

which makes this mouthpiece incredibly durable

76% of the fibre composition of X-Core is recycled polyester

This results in superior performance at depth

Hollis M4 Mask meta-size-chart-fourth-element-dive-boots-size-chart helping to reduce abrasion andThe Hollis M4 Mask is a perfect choice for a diver who value fit and field of vision above all else when choosing a mask. The M4 fits an amazingly wide variety of different face shapes and it offers a superior peripheral and vertical vision. The single lens is moulded directly into the silicone skirt for a lightweight frameless design that allows the mask to be folded virtually flat for stowing in a mask pouch or BCD pocket. The strap buckles are