Split Nano Optics makes change of the lens more fun and easier than ever. Split Nano Optics has a NANOOPTICS™ single lens with no refractive error or light refraction. The NANOOPTICS™ lens combines all the best features of a single lens for superior visibility and clarity. Of course, with 100% UV protection.- Ventilated frame and 3-layer foam with fleece for maximum comfort in the slopes. Silicone-treated strap with adjustable buckles. OTG customization lets you wear your regular glasses underneath. Bring Split Nano Optics on alpine skiing and freeriding and enjoy the smoothest lens change ever.Features:General:- With the magnetic design, you switch between the Nano Optics lens and the contrast lens lightning speed. The NANOOPTICS™ lens is a small wonder in itself. Multiple features in the same single lens, with an anti-fog treatment three times better than a double lens model. Absolutely the best visibility, so you can keep total focus on your runs! Split Nano Optics is a very good goggle for alpine skiing and freeriding.Lens Features:- Split Nano Optics has a single lens with NANOOPTICS™ technology. By combining different materials in a single lens, you get a enhanced visibility without any refractive error or light refraction. Something that can be noticed in a regular double lens. The NANOOPTICS™ lens has many valuable features such as scratch protection, anti-fog treatment and multicoating. The anti-fog is at least 3 times better than a standard double lens. The lens is unbreakable with maximum UV protection and is water repellent. Superior technology in one lens!Material:- Three layers of foam with fleece in the inside make Split Nano Optics comfortable all day.Adjustability:- With Split Nano Optics, changing lenses has never been easier. With the magnetic design it is easier and faster to change lenses than any other model on the market. Switch between the Nano Optics lens and the included contrast lens in just a second. The neck strap with silicone treatment can easily be adjusted for best fit, then it sits as glued to the helmet.CE Standard:- All Bliz Active products are CE-marked which means that we follow the basic health- and safety demands which can be found in the EU- Directives. You can find this manual in the product box.100% UV-Protection:- Bliz Active Eyewear protect your eyes efficiently against harmful UVA and UVB-rays.Nano Optics™:- MINIMAL DISTORTION / NANO ANTI-FOG NANOOPTICS™ - gives you a superb vision with minimal distortion. Nano Optics also has an integrated unique anti-fog treatment that lasts forever.Magnetic Quick Change Lens:- With the magnetic design, you switch between the Nano Optics lens and the contrast lens lightning speed.Extra Lens x1:- 1 Extra lens is included - for unbeatable value.OTG - Over the Glasses:- OTG models enable you to wear your ordinary glasses with your goggles while performing sports.Ventilated frame:- Ventilated frame to avoid the lens from fogging up.3 Layer Foam:- 3 layer foam for a comfortable fit.Specifications:40 mm silicone strap:- The 40mm silicone neck strap makes sure your goggles stays in place on your head.- Weight: 221g