The Onix Pickleball Owl RX Protective Eyewear glasses are built to withstand the rigors of competitive pickleball play and allow you to play safer. These safety glasses offer a removable customizable insert to add your vision prescription if you choose. The RX vision prescription is added to the removable insert by your optometrist (this cost is extra and not included). The glasses are 99.9% UV sun protected and feature durable anti-scratch/anti-fog treated lenses. The vented lenses increase airflow to reduce fogging and enhance comfort during extended matches. The set includes three color options — clear, smoke (sunglass), and blue tint — to suit various lighting conditions. Soft non-slip nose pieces add comfort, and the co-molded soft ear pads provide a secure fit while you play. The Owl RX Eyewear glasses also include an adjustable elastic strap and a microfiber storage pouch for easy transport and cleaning. Lenses: Polycarbonate material; Frames: Nylon material; Nose piece & side arm padding: TRP/Rubber. All eyewear models meet/exceed ASTM F803-11 impact standard. Dimensions: lens width – 6.7cm, lens height – 4.2cm, temple length – 11.9cm, overall width – 15cm. RX insert dimensions: lens width – 4.4cm, lens height – 2.7cm, overall insert width – 13.4cm. Learn more about how to choose the right pickleball glasses here.