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Modern style sport glasses with lightweight frame and special Interchangeable polycarbonate photochromic lenses with reading area, that are designed for people with far sighted vision. These lenses have a light transmission of 85-17%. The brighter the light, the darker the lens automatically becomes. One lens provides you with category 1, 2 and 3 levels of eye protection.
Grilamid Frame Material BBB sports glasses frames are made of Grilamid TR90. This is a light and flexible material, providing great durability and a level of comfort. Grilamid has some exceptional characteristics which include high heat distortion temperature, good flexural bending strength and high stress crack resistance. This makes Grilamid an ideal material for BBB´s sport glasses frames. You can bend your frame to place your lenses, without wondering if the frame is going to crack or not.
PH Lenses – Photochromic Automatically adapts to changing light conditions. They turn dark when it’s bright and become virtually clear in low light conditions. Especially the available light range is unique. BBB’s lenses can adapt from allowing 85% - 17% of the available light to flow through.
Protection Index enligt Standard EN1938
0 - For cloudy days the lens is colourless
1 - Suitable for weak sunlight through an otherwise cloudy sky
2 - Medium lenses for normal sunlight
3 - Strong sunlight (alpine and marine), often dark lenses
4 - High Alpine and marine environment. Very dark lenses, not suitable for driving!
From now on I can do without reading glasses, sunglasses and transparent glasses when e-biking. These glasses do it all well. I normally use reading glasses of + 3.0. For cycling, I took a distance +2.5, which proved to be a good choice.
Ab sofort kann ich auf Lesebrille, Sonnenbrille und Klarsichtbrille beim e-biken verzichten. Diese Brille erfüllt das alles bestens. Ich verwende normal eine Lesebrille von + 3,0. Für das Radfahren nahm ich abstandsbedingt +2,5, was sich als gute Wahl erwies.