Are these lenses polarized?

Yes. The RB4378F uses polarized polycarbonate lenses with a dark grey gradient tint and Category 3 UV protection.

What does low bridge fit mean?

The frame is shaped for flatter nose bridges, so it sits closer to the face and is less likely to slide down.

What size is the frame?

It is a 54-16: 54 mm lens width, 16 mm bridge and 145 mm temples, with a 46.9 mm lens height.

Is $160 a good price?

It is the best new price found as of November 6, 2026, but it sits at the top of the recent range, and only two stores list it new.

Are they good for driving?

Yes. The polarized gradient lenses reduce glare from the road and dashboard, though the dark tint is less suited to dusk.

What comes in the box?

Ray-Ban typically ships these with a case and cleaning cloth; confirm the included accessories with the store before ordering.

Where is the Ray-Ban RB4378F Women's Sunglasses cheapest?

At Macy's, for $160.00, as of our latest check.

Where can I buy the Ray-Ban RB4378F Women's Sunglasses?

8 stores we checked sell it, including Macy's, Walmart, Designer Frames Outlet, Frames Direct, GlassesOnWeb.com.

Ray-Ban RB4378F Women's Sunglasses

Q: What do buyers say about the Ray-Ban RB4378F Women's Sunglasses?

Rated 4.6 out of 5 from 80 ratings.

Best price now

$160.00at Macy'sObserved at 8:38 AM

Prices are checked against each store and labelled with when.

Visit Macy's

What reviewers say

4.6 / 580 ratings

Rated 4.6 out of 5 from 80 ratings, the RB4378F is well received overall. Owners like the polarized lenses and the low-bridge fit, and the Havana frame draws compliments. Complaints center on price and on the plastic feel of the frame.

What people mention

Lens glarePraisedOwners say the polarized gradient lenses cut glare well in sun and on the road.
FitPraisedThe low-bridge design is reported to sit securely on flatter noses.
Frame materialCriticisedSome buyers find the injected plastic frame less premium than acetate.
StylePraisedThe Polished Havana frame and brown gradient lens get frequent compliments.

About the Ray-Ban RB4378F Women's Sunglasses

Ray-Ban: The Legacy of Timeless Eyewear: Founded in 1937 by Bausch & Lomb, Ray-Ban revolutionized the world of sunglasses with the creation of the iconic Aviator design, originally developed for U.S. Army pilots. From that moment on, Ray-Ban has set the standard for high-quality eyewear, blending unparalleled craftsmanship with style. With its rich history and deep commitment to innovation, Ray-Ban continues to be a leader in the sunglasses industry, offering a perfect combination of fashion, comfort, and durability. Ray-Ban's mission has always been clear: to help people see the world through superior lenses while offering eyewear that complements their lifestyle. Whether you’re looking for stylish sunglasses for men or women's eyewear, Ray-Ban ensures that each pair of sunglasses is designed to provide crystal-clear vision, maximum protection, and exceptional style. With cutting-edge lens technology, Ray-Ban has enhanced its eyewear offerings over the years, integrating features like polarized lenses and UV protection, making them ideal for people who demand premium sunglasses for both functionality and fashion. Ray-Ban sunglasses are not just accessories-they're a way to express personal style while prioritizing eye protection. From the classic Ray-Ban Aviators to the modern Ray-Ban Wayfarers, each pair of Ray-Ban sunglasses continues to inspire confidence and provide the highest level of quality. With their rich heritage and forward-thinking designs, Ray-Ban is committed to helping people see better and look great doing it.