From racing to riding to the store, Ryders Eyewear's Binder Photochromic glasses are tailor-made for you. The photochromic lenses are the real heart of the Binders: they automatically adjust tint as light conditions change. They also offer total UV protection, hydrophobic coating, and shatterproof construction. TR90 frames give you just the right amount of flex for a comfortable fit, while the hydrophilic nose pads and temple tips add stability even when wet. Don't be surprised when you forget these stellar glasses are even on your face: they weigh a paltry 26 grams, after all.