Secure Checkout5–7 Day Tracked Delivery30-Day Trial
Description
Lens & Protection: A 2.0mm impact-resistant multi-layer polycarbonate lens with UV400 protection, a polarized TAC filter, an 11.4% VLT Category 3 tint, and a cobalt Revo mirror coating. Tuned to keep snow texture visible in bright light.
Frame & Fit: Flexible TR90 frame tested down to -22°F, 142mm hinge span for medium-to-large heads, 1.8mm straight temple arms for helmet compatibility, and a three-position rubber nose bridge that grips when wet.
Side Shields & Venting: Perforated TPU side shields snap into the temples with a firm click and come off in about two seconds. Six laser-cut vent ports along the brow and side baffles keep air moving to limit fogging.
5–7 Day Shipping & 30-Day Returns
Free 5–7 Day US Shipping: Every order ships free with full tracking and delivers in 5 to 7 business days.
30-Day Trial: Try it at home for 30 days risk-free. Need help? Email us anytime at support@buycosari.com.
2-Year Warranty: If anything goes wrong within 2 years, we replace it free of charge or refund your order in full.
Why Choose the Cosari GlacierShield V4?
Blocks Snow Bounce Glare
Side shields stop the reflected light that leaks in around regular sunglasses, so your eyes feel fresh at the end of the day.
Sub-Zero Tough Frame
The TR90 frame and shield tabs flex instead of cracking, even after a night at -20°F in our test freezer.
30-Day Snowfield Trial
Take them skiing, touring, or driving. If they fog, leak glare, or pinch, send them back for a full refund.
Fit: 142mm hinge span, 1.8mm straight temple arms, 3-position nose bridge
Venting: 6 laser-cut brow and side-baffle ports
Care & Safety
Rinse off salt, sunscreen, and grit with lukewarm water before wiping, then dry with the included microfiber pouch. Avoid paper towels, which can scratch the mirror coating.
Store them in the hard case when they're not on your face, and don't leave them on a car dashboard in direct sun. Remove the side shields and wipe them separately if they get sweaty.
Backed by our 30-Day Money-Back Guarantee & Full Cosari Warranty
Customer Support: support@buycosari.com
Ready for the Snow in 3 Steps
Swipe left for steps 2 and 3
1
Snap In the Side Shields
Press each shield into its temple slot until it clicks. It takes about two seconds per side, even with liner gloves on.
2
Slide Under Your Helmet
Put them on, slide the straight arms under your helmet's ear pads, and set the nose bridge to one of three positions for a snug fit.
3
See the Snow Clearly
Head out. Glare from the sides is blocked, snow texture stays sharp, and the vents keep the lens clear on the climb.
Protect Your Eyes on Your Next Bluebird Day
$44.99$89.99 Free Tracked Shipping (5–7 Days) Included
In Stock – Free 5–7 Day US Shipping · 30-Day Risk-Free Trial.
Frequently Asked Questions
Will the Cosari GlacierShield V4 fit under my ski helmet?
Yes. The straight TR90 arms are 1.8mm thin and slid under the ear pads of every Smith, Giro, and POC helmet we tested without pressing on the temples.
Do the side shields make the lenses fog up?
Not in our testing. Six vent ports along the brow and side baffles keep air moving, and the lens cleared in 2.4 seconds with both shields attached, even with a neck gaiter pulled up.
Can I drive with them?
Yes. The 11.4% VLT lens is Category 3, which is fine for daytime driving. Most people pop off the side shields for the drive for a wider side view.
Are they really UV400 and polarized?
Yes. We confirmed the UV cutoff from 380–400nm with a spectrometer and checked the polarization against an LCD screen.
Can I read my phone or watch through them?
Mostly. Like any polarized lens, screens can look dark at certain angles. Tilting your phone or wrist about 45° fixes it.
What if they don't work for me?
You're covered by a 30-day money-back guarantee. If they fog, leak glare, or pinch under your helmet, send them back for a full refund.
