| XS | S | M | L | XL | XXL | |
| Men | 118-123 | 124-129 | 130-135 | 136-141 | 142-147 | 148+ |
| Women | 114-119 | 120-125 | 126-131 | 132-137 | 138-143 | 144+ |
| Kids | 107-112 (Infant) | 113-118 (Toddler) | 119-124 (Little Kids) | 125-130 (Big Kids) |
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Nike Flyfree
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We currently don't have any in stock, but we can get you some.
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
Looking for Rx replacement lenses?
Need Help With Fit or Prescription?
Talk with one of our friendly Sports Opticians.
PRODUCT OVERVIEW
Coverage
Sweatability
Prescription Friendliness
SportRx Frame Widthâ„¢ 
135mm
135mmSportRx Frame Widthâ„¢ (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.
View Size & Fit GuideSPORTRX FIT GUIDE
SportRx Frame Widthâ„¢ (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.
SportRx Frame Widthâ„¢ Chart
*All Sizes in MillimetersDETERMINING YOUR SFW
Use Eyeglasses and Not Sunglasses
Using flatter eyeglasses makes for a more accurate measurement. It takes a bit more finesse with wrapped sunglasses to get an accurate SFW measurement.
Have more than one pair?It never hurts to have more than one 'frame' of reference! If you have more than one pair that you love, you can measure multiple pairs and get an average.
Make sure the glasses fit!
Since we're using your glasses as a template for ideal fit, make sure they're a pair that are comfortable: not too wide, not too narrow. A quick glance in the mirror will show if the frames spread too far past the edges of your face or seem to 'pinch' it.
How/What do I measure?Measure with the temples opened out fully. Aim for right behind the hinge and measure from the inside of the frame material of one side to the inside of the other side.
FINDING YOUR BRIDGE FIT
Finding the right eyewear for your face means two things: the right frame size and the right bridge style. At SportRx, we have three different bridge styles:
Standard
A standard nose bridge is best for those with nose bridges that go higher than their pupils, or if you have more narrow cheekbones. Standard nose bridges are fixed and don’t include adjustable nose pads.
AdjustableAn adjustable nose bridge includes flexible nose pads that can be adjusted for a firm, yet comfortable hold. This style is best for those who prefer a more customizable fit.
Low-Bridge
The low-bridge fit is designed for those with narrow nose bridges or cheekbones higher than their nose bridge. Also called Asian Fit, this is a great choice if your frames tend to slide down or touch your cheeks.
Improve your game with Nike Flyfree sunglasses. This medium-sized frame provides the perfect blend of protection and style. The 4-base lenses are flatter than typical sport sunglass lenses and accommodate high prescriptions. They have anti-reflective, hydrophobic, and oleophobic coatings to keep your vision clear, and offer 100% UVA/UVB protection. And you’ll always be ready for changing light conditions with the Flyfree. The lenses and are easily swapped with the Nike Mount lens-locking system. Simply flip out the hinge latch, mount the new lens dock, close the hinge, open your temple, and you're locked in.
Its castor bean oil frame is durable and lightweight, making it comfortable enough for all-day wear. It minimizes exposure to the elements with a wrap around curvature and keeps your vision clear and fog-free with ventilated channels at the temples, hinges, and brow bar. Enjoy enhanced grip and an optimal fit no matter your face shape with silicone-coated adjustable temples and nose pads.
The Nike Flyfree includes two sets of lenses with different tints for versatile use, with the dock color potentially varying with these lenses. Choose frames with authentic Nike mirrored, clear, or sport-engineered tints like Nike Road Tint for the track and road, or Nike Low Light Tint for night visibility. Need your Flyfree sport sunglasses in prescription? Customize the primary lens with a prescription SportRx lens color of your choice!
Upgrade your sports gear today and experience the difference of Nike Flyfree sunglasses.
Benefits
Swap Between Multiple Lenses
With interchangeable lenses, you can swap out your lens with ease. Get fine-tuned performance for every sport you love, all wrapped into one killer frame.
Customized Comfort
Fine-tune the fit of your glasses with adjustable nose pads for better optical alignment, comfort and wear-ability.
Custom Secured Fit
Achieve a comfortable, custom fit with temples that adjust to relieve pressure from your temples while staying snug on your face.
Slip Free
Rubber nose pads keep your frames in place and optically aligned even as you sweat, jump, slide, bounce, you name it.
Secure Comfort
Rubber temples aid a secure and steady grip so your sunglasses can rest comfortably on your head.
Sweat Management
Unique frame design allows for increased airflow which wicks away and drains any sweat or moisture you work up.
SIZE & FIT GUIDE
- Lens Measurements
1 - Lens Width: 59 mm
2 - Lens Height: 44 mm
- Frame Measurements
3 - Bridge Width: 14 mm
4 - SportRx Frame Widthâ„¢ (SFW): 135 mm | Learn More
5 - Temple Arm Length: 135 mm
- Frame Fit
M, L | Not sure about frame fit? Frame Fit Guide
- Bridge Fit
Adjustable | Not sure about bridge fit? Bridge Fit Guide
TECH SPECS
- Frame Materials
- Eco-Friendly, Nylon
- Safe from Harmful UV Rays
- 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.
- 4 Base
- Another way to refer to a flat frame. 4 base refers to glasses that have almost no curve to the lenses or frame and the temples rest at perpendicular angles.
- Included Accessories
- Bonus Lens, Hard Case, Lens Case
- Perfect For These Activities
- Baseball, Cycling, Mountain Bike, Pickleball, Racquetball, Running, Softball, Tennis, Triathlon, Volleyball
SportRx Sport Optimizedâ„¢ LensesAll Sport Optimizedâ„¢ lenses come ready-made with advanced lens coatings for maximized clarity and contrast. These lenses feature multiple clear, tinted, polarized, and photochromic options.
SportRx Sport Optimizedâ„¢ Lenses
SportRx Sport Optimizedâ„¢ lenses cover every possible base so that you always have a quality lens no matter your intended use. With clear, tinted, polarized, and photochromic options, there's a Sport Optimizedâ„¢ lens for everything under the sun - and indoors too! See the difference for yourself today.
The perfect lens. All the time.
CustomizationOur Sport Optimizedâ„¢ lenses are uniquely functional, the ideal blend of our years of optical experience and knowledge of what performs best for each sport.
VersatilityNo matter what you're playing, there's a Sport Optimizedâ„¢ lens for you. Be the boss of any environment or lighting condition.
High-TechAll Sport Optimizedâ„¢ lenses come ready-made with advanced lens coatings designed to make your life SO much easier. See the difference yet?
PhotochromicThese Sport Optimizedâ„¢ lenses use UV-based and light-reactive technology to change their tint so that you're perfectly equipped all day, every day.
PolarizedEliminate glare with these made-for-you Sport Optimizedâ„¢ lenses. Whether you're fishing or driving, the days of annoying glare are far behind you.
Nike Flyfree Reviews
*Results Vary From Person To Person
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