EnChroma® Colby Cx3 Sun SP is a classic frame with Cx3 Sun SP lens technology engineered to deliver clear, bright color and 100% UV protection for those with strong protan color blindness. Designed for children 10 and up, this frame also fits narrow adult faces. Embedded rubber nose pads and high quality hinges offer a secure, comfortable fit. TR-90 frame material delivers durability and flexibility ideal for kid-friendly wear. Sits lightweight on the face for all-day comfort. Case included. Available in Smooth Black or Night Sky (non-rubberized). Frame size 53-17-140.