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Q: What does 'hydrophobic' mean?

AMO sports sunglasses lenses have a 'washable hydrophobic coating' which means water or sweat simply rolls off the lens. This coating means AMO sunglasses are less prone to smudging, are easier to clean and remove static, and act as a water repellent. Whether covered head-to-toe in sweat or running into driving rain AMO's sports sunglasses will repel all moisture and keep the wearer's vision completely clear.

The washable hydrophobic  coating on AMO sunglasses means the contact angle of the water on the lens is greater that 100 percent and water will form a 'bead' and roll off the lens without streaking. This feature is important in critical situations when water is being flicked up from the road when cycling or when water droplets get on the sunglasses lenses due to sweat or rain.

Hydrophobic coatings are an important performance feature for multi-sport athletes, which is why they are widely used across the AMO sports sunglass range. 

Q: How is AMO's anti-fog coating different?

Optional AMO lenses have a special 'washable' anti-fog coating' to prevent them from fogging up during training and racing. Many sports sunglasses purport anti-fogging features, however, they can deteriorate, especially after repeated washing. AMO's sports sunglasses lenses are different as their anti-fog coating will remain longer, even after repeated washing of the lenses. Anti-fog coatings are a useful performance feature, particularly for runners where there is less airflow around the sunglasses compared with cycling.

And AMO anti-fog coatings don't impede clarity, unlike some anti-fog coatings on the market.

Q: What are 'Revo' lenses?

Revo lenses have a dramatic, intense coloured effect - a coloured coating added during the manufacturing process. They look simply stunning.

The colour is not placed uniformly on its surface resulting in a 'rainbow' effect on the lens. Revo comes in variety of colours from blue, black-red, purple, green and yellow. Revo coatings offer no additional optical performance and are purely aesthetic.

Some models of AMO's lenses have Revo coatings as they look cool, and match nicely to the frame colours. Revo coatings tend to be popular with athletes who like to match their sunglasses to their kit. AMO's sports sunglasses come in a wide variety of lens colours: dark, medium dark, light and, of course, the Revo colours. 

Note the Revo coating is slightly more susceptible to scratching than AMO's other lenses.

Q: What are NXT lenses?

With an NBS number of 45 (a measure of the optical transparency of material), NXT® lenses have less optical distortion than polycarbonate — particularly towards the outer edges.

NXT® lenses are exceptionally strong, lightweight, offer outstanding impact resistance, are scratch resistant and have a water-repelling hydrophobic surface.

NXT® lenses come with different tints for different light levels with photochromic light sensitive versions, a polarised version, and Revo coloured versions.

Q: What are NXT photochromic lenses?

The NXT photochromic lens has self-tint-adjusting technology: The most advanced sports sunglass lens available.

This type of lens is created by infusing small amounts of silver halide crystals into the glass lens material during the manufacturing process. These microscopic crystals automatically change orientation in response to UV light, which results in a shift in tint, either increasing or decreasing visible light transmission. This results in a fine-tuning of the lens tint in response to ambient light conditions as they change throughout the day.

Using an NXT lens base, the photochromic capability never wears out and should last the life of the your sports sunglasses. AMO's sports sunglasses offer multi-sport athletes a lens with crisp optics and soothing light levels, so you can focus on the race from dawn to dusk.

Q: What are polarized lenses?

AMO polarized lenses will not reduce optical clarity. The public perception is that polarization offers advantages: polarized lenses do reduce glare and eye fatigue in very sunny environments and where there is a lot of reflected light (water, snow). But there are issues for the multi-sports athlete: poor polarization does reduce optical clarity and most polarized lenses will make it harder to read the LED displays on a bike computer or sports watch and poorer quality polarized lenses will actually distort vision.

AMO’s sports sunglass models provide a polarized lens option, taking special care to ensure there is no compromise in optical clarity from its polarization. The revolutionary photochromic and polarized NXT lens is one of the best on the market.

Q: How is lens scratching minimised?

Even the best sports sunglasses lenses are not scratch-proof.

The polycarbonate and NXT lens materials used in AMO's sports sunglasses have a relatively soft surface and therefore could be easily scratched. To top that multi-sports athletes are tough on their sports sunglasses and tend to throw them around and use them in the most extreme environments.

AMO understands this issue and all of its sports sunglasses lenses are treated with a special silicon-based anti-scratch coating on both sides to minimise even fine hairline scratches and will extend the life of the sunglasses even in the most extreme environments.

AMO's scratch-resistant coating makes the surface of the lens much harder and more resistant to scratching, whether from dropping them on the floor, allowing the lens surfaces to rub against other surfaces or leaving them in a sports bag rather than in their case, or just cleaning them with a paper towel.

Since scratch-resistant coatings are an optional addition for many lens manufacturers, they are often not included on cheaper or sports casual sunglasses. 

Keep in mind that even the best scratch-resistant coating cannot completely protect your sports sunglasses from wear and tear. To keep sports sunglasses scratch-free it is best to keep the sunglasses in their case and to clean sports sunglasses with a microfibre cloth.

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