| 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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Wiley X Fierce
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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
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PRODUCT OVERVIEW
Sweatability
Prescription Friendliness
Field of View
SportRx Frame Width™
126mm
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.
View Size & Fit GuideSPORTRX FIT GUIDE
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.
SportRx Frame Width™ 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.
Wiley X Fierce sports glasses are your kid’s best bet to safety and optimal vision on the field. That's why they were nominated for the Best Kid's Sport Glasses of 2018 at the SportRx REXY's. Built with polycarbonate, shatter-resistant lenses and high-impact frames, Wiley X Fierce kids sports glasses are extremely durable. The Wiley X Fierce features a low-profile frame with straight-back, slim temples for a comfortable fit under a helmet. Wiley X Fierce doubles as sports glasses and sports goggles with a removable elastic strap. Need prescription sports glasses? Our opticians will gladly custom-build your Wiley X Fierce prescription sports glasses.
Benefits
Impact Resistant
Whether you’re engaging in a high-impact sport, at work, or even riding your motorcycle, safety-rated glasses are engineered to protect your eyes.
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.
Versatile
Instantly transform your sunglasses into goggles with a removable strap that attaches to the temples for a more secure fit.
Sweat Management
Unique frame design allows for increased airflow which wicks away and drains any sweat or moisture you work up.
Superior Retention
Strap integration ensures that the frame is securely and comfortably placed around your face allowing for peak performance.
SIZE & FIT GUIDE
- Lens Measurements
1 - Lens Width: 52 mm
2 - Lens Height: 36 mm
- Frame Measurements
3 - Bridge Width: 18 mm
4 - SportRx Frame Width™ (SFW): 126 mm | Learn More
5 - Temple Arm Length: 135 mm
- Frame Fit
M, Big Kids | Not sure about frame fit? Frame Fit Guide
- Bridge Fit
Standard | Not sure about bridge fit? Bridge Fit Guide
TECH SPECS
- Frame Materials
- 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.
- 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.
- Always Close By
- Hooks from the temple tips, allowing you to take off your sunglasses so they can rest on your chest like a necklace. Never lose another pair again.
- Safety Rating
- ASTM F803
- Included Accessories
- Hard Case, Microfiber Bag, Strap
- Perfect For These Activities
- Baseball, Basketball, Football, Pickleball, Racquetball, Safety/ANSI, Soccer, Softball, Sports, Tennis, Volleyball
Wiley X Fierce Reviews
*Results Vary From Person To Person
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