Our SVED Rx Insert is specially built to work with popular 100% models like the Glendale, Hypercraft, Speedcraft, Speedcraft SL, S2, S3, Racetrap, and Westcraft. Instead of replacing your original lenses, we add lightweight, rimless prescription lenses that fit securely onto your nose pad behind your sunglass lens—preserving both the original style and performance. It’s also ideal for high prescriptions and rugged sport use.