Shop All SunFit
Every pair of SunFit, in one place
Polarised UV400 sunglasses built to go straight over the prescription glasses you already own. No second prescription. No swapping pairs. No squinting.
Fit-over sunglasses
The same polarised lens in three fits — men, women and kids. Pick a frame, slide it over your own glasses, keep your prescription exactly where it is.
SunFit Men
12 polarised styles · Classic, Slim, Jet & Jet Plus Shop men's →
SunFit Ladies
24 polarised styles · Classic, Cross, Luna, Slim & XL Shop women's →
Lenses & essentials
Night driving, screen glare, and the small things that keep a pair alive in a bag.
Two ways to buy
Almost nobody buys one pair — one lives in the car, one lives by the door. Both offers apply to men's, women's, kids', Drive and Smart Lens, and you can mix colours across the pairs on the product page.
What makes a SunFit different
Your prescription stays on your face. Nothing clips to your lenses, nothing gets swapped at the door.
Full UV400 with true polarisation — unlike photochromic lenses, it works instantly behind a windscreen.
Built low-profile and light on the bridge, so they don't slide down your nose the moment it gets warm.
Your eyes change, your glasses change — SunFit still works. No re-buying a second prescription.
Will they fit over your glasses?
Measure your own frames across the front at the widest point. Under roughly 15 cm / 5.9 in works with Classic, Cross or Luna. Wider or deeper frames — take the XL. Slim modern frames — Classic Slim.
| Frame | Overall width | Lens width | Height | Temple | Best for |
|---|---|---|---|---|---|
| Classic | 15.5 cm / 6.10 in | 5.2 cm / 2.05 in | 5.4 cm / 2.13 in | 15.8 cm / 6.22 in | Standard frames |
| Cross | 15.0 cm / 5.91 in | 7.1 cm / 2.80 in | 5.7 cm / 2.24 in | 15.6 cm / 6.14 in | Wider lenses |
| Luna | 14.5 cm / 5.71 in | 6.7 cm / 2.64 in | 5.8 cm / 2.28 in | 14.3 cm / 5.63 in | Rounder faces |
| Classic Slim | 15.2 cm / 5.98 in | 6.0 cm / 2.36 in | 3.5 cm / 1.38 in | 13.8 cm / 5.43 in | Slim modern frames |
| XL | 15.5 cm / 6.10 in | 5.5 cm / 2.17 in | 5.7 cm / 2.24 in | 14.3 cm / 5.63 in | Large or deep frames |
Still not sure? Order the pair you like. If it doesn't sit right over your glasses, you have 30 days to send it back.
What customers actually say
★★★★★ 4.5 average across 3,100+ product reviews on SunFit Men and SunFit Ladies, collected through Judge.me.
“My glasses do not darken enough in the car and these make a huge difference. They fit and look great!!”
Verified buyer“I have previously attached sunglasses to my spectacles with rubber bands. These new SunFit are the answer. They slot over perfectly and don't fall off!”
Verified buyer“Brilliant. They look really smart, are easy to wear and the polarised effect is wonderful. I am delighted!”
Verified buyer“Brilliant glasses and eye catching too! Making driving my new car in the sun a real joy!”
Verified buyer“These glasses fit just right over my eyeglasses!”
James Hopkins · Verified buyer“Easy to wear and very comfortable. They cover my own glasses well.”
Verified buyerTry them against your own glasses for 30 days
If they don't fit over your frames, or you simply don't like them, contact us within 30 days and we'll sort out a return or refund. Free shipping on the way out, delivery in 6–11 business days.
Questions people ask
What exactly are fit-over sunglasses?
Will they fit over my glasses?
Do they look bulky?
Are the lenses really polarised?
How does the Buy 1 Get 1 Free offer work?
Shipping, delivery and returns?
Stop paying twice for the same prescription
Your glasses already work. SunFit just adds the part they were missing — for a fraction of what a second prescription pair costs.
Shop all SunFit → Free shipping · 30-day money-back guarantee · 10,000+ customers