| 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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Bajío Piedra
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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
Coverage
Sweatability
Prescription Friendliness
SportRx Frame Width™ 
132mm
132mmSportRx 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.
Bring the adventure to you. The Bajío Piedra sunglasses were designed for those who love being active and need a pair of shades that perform all day without weighing them down. These 8-base wrap sunglasses are perfect for fishing, water sports and hiking thanks to it's no-slip rubber nose and temples that stays in place while you work up a sweat. Available in prescription at SportRx, the Bajío Piedra sunglasses are the ultimate adventure shades.
Benefits
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.
Smudge Protection
Oleophobic coating protects the lens against fingerprint smudging & facial oils. Oils are repelled from the lens surface making them easier to clean.
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: 62 mm
2 - Lens Height: 44 mm
- Frame Measurements
3 - Bridge Width: 17 mm
4 - SportRx Frame Width™ (SFW): 132 mm | Learn More
5 - Temple Arm Length: 125 mm
- Frame Fit
M, L | 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.
- 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.
- 8 Base
- A high wrap or wrap around frame. These types of glasses fit close to the sides of your face and provide additional peripheral coverage.
- 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.
- Included Accessories
- Cleaning Cloth, Hard Case
- Perfect For These Activities
- Boating/Sailing, Driving, Fishing, Hiking, Water Sports
Bajio LAPIS™ Lens TechnologyUsing proprietary techniques, Bajío is able to improve lens clarity, reduce blur, glare and haze while enhancing color and protecting your eyes from harmful rays.
Bajio LAPIS™ Lenses
Fish better with Bajío sunglasses. All of their frames are sustainably produced, unbelievably lightweight, and tested by their team countless times to make the cut. With polarized LAPIS™ lenses made of polycarbonate, your vision is clear all the way from the deck through to the seafloor.
The Clearest Lenses on the Planet
Blue Light BlockingBajío LAPIS™ lenses block 95% of blue light up to 440nm and a majority of yellow light at its peak of 580nm, more than any other lens on the market.
Advanced PolarizationChange your underwater game with polarized LAPIS™ lenses. Polarization cuts glare to let you see through the water's surface and improve contouring and detail.
Eco-FriendlyEvery part of Bajío sunglasses is sustainable, from their bioplastic frames to their recycled packaging. When you shop Bajío, you're helping the planet.
LAPIS™ Lens Types
Blue Mirror/Grey BaseA super dark lens that's great for offshore fishing, especially in sunny weather.
Silver Mirror/Copper BaseWith a higher contrast, this medium lens is great for sun and lower light, as well as freshwater fishing.
Grey BaseA low-contrast lens that's less flashy and slightly lighter than its mirrored equivalent.
Green Mirror/Brown BaseAnother dark lens suited for inshore fishing in sunny weather, including flats, reefs, and shorelines.
Rose Mirror/Red BaseA higher-contrast, medium lens that works in most conditions and is especially suited to freshwater fishing.
Copper BaseA high-contrast lens suited for improving your line of sight. Great for spotting underwater structures and fish.
Bajío Piedra Reviews
*Results Vary From Person To Person
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