The Know has a frame made from lightweight, flexible and durable grilamid and is suitable for almost any athletic endeavor. The hydrophilic rubber stays grippy even when wet, so the glasses will stick to your nose when you move, regardless of rain or transpiration. The nylon lenses are treated with Ripel, for clear vision and easy cleaning.
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Features: Lens VLT 20% Lens Category 2 Lens Type Zeiss