Cycling sunglasses with interchangeable lenses Switch between half-frame and full-frame Durable, flexible and lightweight TR90 frame Scratch-resistant polycarbonate lens. Cycling Glasses Interchangeable Lenses Monton Switchable Cycling sunglasses offer maximum coverage and an ergonomic design for greater comfort while riding. This innovative design offers riders the opportunity to switch between half-frame and full frame glasses depending on which frame coverage and appearance is preferred. The Polycarbonate lenses offer high definition, more natural coloration, and unmatched clarity. TR90 frames provide adjustable nose pads for a firm fit regardless of face shape, and the cushioned nose pads ensure the glasses stay put on rougher terrain. Features:- Durable, flexible, and lightweight frame- 100% UV protection - Ultra-light Scratch-resistant polycarbonate lens- Soft case provided- Prescription Lens Compatible Lens protection from both UVB and UVA rays