Did you ever wonder why all the good spear fishermen wear only dark rubber masks? Clear silicone rubber can create reflections on the Inside of the lenses from surface light distracting the hunters focus on the prey. Real underwater hunters always wear black. Sherwood’s New Onyx ARL (Anti Reflective Lenses) Mask has a stealthy matte black finish that is perfect for the underwater hunter. The Onyx ARL takes this concept to the next level. The Onyx ARL uses Hyper-Clear Lenses that improve clarity and increases light transmission. Standard glass lenses have a slight green tint due to regenerative scattering of iron molecules during the tempering process. This green tint distorts true colors and reduces light transmission through the glass. The New Sherwood Crystal Clear Lenses are superior quality optical tempered glass with exceptional clarity and increased light transmission with no color distortion. Anti-Reflective Lens Coating allows more light to enter the mask and reduce light reflection. This makes seeing through the mask better above and below the water. Sherwood developed ARL Technology to reduce reflected light and actually increase the amount of available light transmitted to a diver’s eyes. The result is a greatly improved transmission of 98% of available light, compared to a loss of more than 8% of light with glass used on the majority of masks on the market. Anti-Reflective Lens is a multi-layer coating process applied to both sides of the lenses. This allows more light to enter the mask by reducing light reflections off the inside and outside surface of the lens. The coating is only a few microns thick. ARL will give you clearer, crisper vision. You will see more clearly underwater and objects in the distance will become more defined and acute. ARL also increases contrast and clarity, reduces eyestrain, glare, and prevents ghost images on the viewing Area of the lens. ARL is an absolute must for night diving, limited visibility conditions, and underwater photographers. The Onyx ARL is a low-profile mask with dual tempered glass lenses. The Mask has unique push-button buckle system that makes adjusting the mask quick & easy even when wearing the mask! This low volume mask gives a great field-of-vision and is easy to clear. The Onyx ARL Mask has a double feathered edge high quality black silicone rubber skirt and wide split style silicone rubber mask strap that combined to create a perfect seal on the face. The Onyx ARL Mask is equipped with an ergonomic easy-to-reach one-hand nose pocket for ear equalization which can be utilized even when wearing thick gloves. The Mask comes in all black for the hunter-in-you. The Onyx ARL with its non-reflective black silicone skirt and matte finish is also a great mask when you’re hunting for that perfect photograph. Photographers also get distracted with reflections when using a clear silicone mask causing reflections on the viewfinder or camera LCD. The Onyx ARL can also improve you’re photography skills. Mask comes with a protective mask box.