Size:3 The Quake motorcycle riding bifocal sunglasses 3.00 with High Definition Blue Blocking lenses are the perfect motorcycle riding glasses for sunny days, cloudy days and rainy days. High Definition lenses (also known as HD vision or blue blocker lenses) filter out the blue light in the UV spectrum, which causes haziness and glare; leaving a clearer and crisper view. Equipped with rubber ear pieces, they provide super comfortable and snug fit. High profile vented EVA foam cushions offer maximum protection from dust, wind and the harmful UVs. Lenses are ANSI Z87.1, the highest certified safety lenses with anti-glare coating. Fit small to medium head sizes. A perfect bifocal sunglasses for woman! Free deluxe water resistant nylon zipper hard case and sunglass string are included for each pair!