The Delta Black VZUM Leaf glasses by Alba Optics are the perfect choice for your bike trips. They are inspired by the cycling eyewear models of the 80\'s and 90\'s.They offer perfect fit to your face thanks to their design: the frame is ergonomic, the temples are strong and arched and the nose bridge is made of hypoallergenic rubber. You\'ll keep them from slipping off when making those sudden head turns!The VZUM™ lenses of these Delta glasses provide clear vision when changing your view from the pedals to the road. They offer great UV, intense light and wind protection (CAT 3), and provide athletes with the maximum visual experience in all weather conditions and on all types of terrain. Additionally, they are 20% lighter than other conventional materials for maximum protection against cracks and stress.And for cyclists suffering from myopia, they are fully compatible! The lenses focus the spectrum of light closer to the infrared.