NIMBUS RC MODELGLASSES (BLACK FRAME) Nimbus sunglasses have been an integral part of Rapid Eyewear's RC Modelglasses range for several years, and they remain as popular as ever. The choice of many top pilots across the world. They feature interchangeable lenses, including polarised and light-enhancing options, that will make Nimbus invaluable whatever the light conditions. Now supplied with a tougher TR90 frame - also available in silver (see separate product listing). Right: F3A ace Stefan Kaiser The Frames Lightweight TR90 frame, with sprung side arms, rubber nose pads and rubber side arm extensions for comfort fit. The frame has a slight built-in flex that allows for fitting on most sizes and shapes of head. Finished in a hand sprayed matt black finish. The Lenses Nimbus are supplied with the following lenses: Cat 0 light-enhancing, for dull light Cat 2 beige polarised, for fairly bright or changeable conditions Cat 3 polarised grey mirror for sunshine Cat 4 dark, smoked lenses for very bright conditions All lenses have an anti-scratch coating and precision decentred optics. Our lenses filter out blue light to improve contrast and definition in your field of view, thereby helping to determine the distance to, and orientation of, a model. Additional Frostech Blue Lenses We are pleased to offer a pair of attractive Frostech blue mirror lenses, as used on Nimbus FT, as an optional extra. FT lenses have vent cut-outs that prevent fogging on the inside surface on warm days. Accessories Hard carry case, with belt fixing loops and catches Head securing strap Lint-free cleaning cloth. Conformity and UV Rapid Eyewear sunglasses conform to the new ISO 12311 and 12312 standards for sunglasses and protective equipment testing. This standard has now replaced EN1836 in the European Union. They offer 100% UVA / UVB (UV400) protection. Spares A full range of spares is available for Nimbus should you need them in future, plus additional lens options.