The One Ultem 2152 Gray w/Neon Yellow glasses online are lightweight, extremely flexible yet super strong with 100% memory allowing the frames to bounce back to their original shape. The rounded rectangular shaped lenses are rimmed in a gray matte on the outer portion of the frame with a neon yellow inner portion. Adjustable nose pads and flexible gray and green rubber covered stem tips are there to keep these specs fitting great at all times. The special Ultem material has demonstrated no risk of allergy and is FDA and CE approved.