for more information about Julbo lens technology. ; The mountain has met its match with the all-terrain-ready Bivouak from Julbo. ; Part of the Mountain Collection. The finest and largest collection of mountaineering eyewear for high-altitude and extreme conditions. ; Spectron 4 lenses feature: &#8226; Suitable for all types of sports, these light lenses offer excellent shock resistant properties. &#8226; Anti-reflective coating offers improved visual comfort by eliminating stray reflections. &#8226; Flash finish improves light filtering with mirror effect lenses by reflecting the rays of light and increasing the filter effect. Eliminates the radiation reflected by the outer mirrored surface of the lens. ; Front venting offers natural front air flow because of the lens shape and mounting structure. ; 360&#176; adjustable temples can bend in every direction, are easy to wear, and offer a strong hold when worn with a helmet, beanie, or just by themselves. ; Inserts at stem ends for comfort and hold; won't stick to hair. ; Magnetic wings offers supreme coverage and added protection for optimum ease of use. ; Enhanced coverage offers maximum protection in extreme conditions against harsh sunlight. ; Protective soft case included. ; Dimensions: Frame Width: 145mm Lens: 36mm high x 65mm wide Bridge: 16mm Temple Length: 118mm Measurements: ; Temple Length: 118 mm ; Frame Width: 145 mm ; Lens Height: 35 mm ; Weight: 1 oz ; Lens Width: 65 mm ; Bridge: 18 mm ; This product may have a manufacturer's warranty. Please visit the manufacturer's website or contact us at for full manufacturer warranty details.