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Free Shipping & Returns
Free Shipping & Returns
Free Shipping & Returns
Don't pay a cent for standard shipping ever again. Other shipping options are available. Learn More
Not 100% satisfied with your purchase? Return them within 45 days for a full refund or exchange. Learn More
See Better Guarantee
See Better Guarantee
See Better Guarantee
We understand prescription lenses are an investment in your vision. At SportRx, we go beyond premium brand names and prescription lenses. We give you friendly professionals to help you find what you need and 45 days to make sure you’re happy with your purchase. Your satisfaction is our promise, or your money back. Learn More
FSA & HSA Accepted
FSA/HSA ACCEPTED
FSA/HSA ACCEPTED
Flexible spending accounts (FSA), health savings accounts (HSA), and out-of-network vision insurance coverage can all be used towards awesome new prescription sunglasses, eyeglasses, and goggles. Learn More
SportRx Frame Width™ (SFW) is the measurement our Sports Opticians use to find the most accurate fit possible. Unlike most eyewear measurements that have little to do with fit, SFW serves as an indicator for how well a frame or goggle will fit your face.
Simple, understated, yet anything but boring—the Electric Knoxville is your new favorite pair of shades. These classic wayfarers are so wearable, they complement everything from watery adventures, to special occasions, to cruising without a care. The Knoxville exudes Electric’s stellar Italian craftsmanship from its durability to its crystal clear optics. Fans love the lightweight, eco-friendly frame, which is flattering on all face shapes. Stainless steel 3 barrel hinges and bent temples give it a hand-in-glove fit. Premium scratch and impact-resistant lenses are also available polarized. And now, SportRx is partnering with Electric to bring you Knoxville sunglasses in prescription. With its classy design and debonair flair, the Knoxville is a knockout in every way. Knoxville sunglasses include a lifetime warranty and are also available in XL.
Benefits
Glare Protection
Enables better vision by reducing the amount of reflective light bouncing off your lenses.
Enhanced Durability & Longevity
Hard coating provides a high-quality, scratch-resistant coating protecting lenses everywhere your adventure takes you.
SIZE & FIT GUIDE
Lens Measurements
1 - Lens Width: 55 mm
2 - Lens Height: 43 mm
Frame Measurements
3 - Bridge Width: 19 mm
4 - SportRx Frame Width™ (SFW): 132 mm | Learn More
Block carcinogenic ultraviolet (UV) light from reaching your eyes. With 100% UV protection, your eyes are safe from absorbing harmful sun rays.
One Lens, Multiple Corrections
Progressives allow you to see near and far in one pair of glasses. Vision in progressives feels natural with the multi-focal lens seamless transition.
6 Base
The most common base curve for casual wear glasses. These types of glasses will have a slight curve to the lenses and frame, but are still fairly flat.