Synthetic. Made in US. Plastic lens. Non-Polarized. 100% UV protection coating. Lens width: 54 millimeters. 0.7" high. 14" wide. NYLON STRAP snaps on to end of frames to hold them securely around your neck.. COMPATIBLE WITH: Oakley M-Frame 2.0 and 3.0 eyewear, Oakley Split Jacket, Racing Jacket and Radar Lock sunglasses. The Oakley sunglasses performance strap kit snaps on to the end of your sunglasses to help keep them securely in place. The leash caps snap to the end of the frames without disrupting form or fit. The performance leash is compatible with Oakley M-Frame 2.0 and 3.0 eyewear, Oakley Split Jacket, Racing Jacket and Radar Lock sunglasses.