Ray-Ban RB3721 002/B1 — Black / Dark grey polarized

Black metal construction with Dark grey polarized lenses define the Ray-Ban RB3721 002/B1, a sunglass from Ray-Ban's current best-selling lineup.

Finished in Black, this colorway gives the RB3721 silhouette its own character.

The Dark grey polarized lenses complete the look, balancing sun protection with the frame's color story.

Black

The 002/B1 Black colorway pairs the RB3721 frame with a distinctive finish.

Built in metal, the frame offers the durability and feel Ray-Ban is known for.

The Original Sunglass Brand

Ray-Ban was founded in 1937, born from a U.S. Army Air Corps request for glare-cutting lenses for pilots — the origin of the Aviator. The Wayfarer followed in 1952 and became one of the most recognizable frame shapes ever made. Few brands own sunglass history the way Ray-Ban does.

Timeless Shapes, Honest Build

Ray-Ban's best sellers endure because the shapes are resolved and the construction is straightforward. These are sunglasses designed to be worn daily for years — classic proportions, reliable hinges, and lenses in the brand's signature green, grey, and brown families.

Polarized Clarity

Polarized lenses cut reflected glare from water, roads, and other flat surfaces — reducing eye strain and sharpening contrast in bright conditions.

Square Shape

A square front gives strong definition and a bold, graphic read — structured lines that anchor the face.

Adjustable Nosepads

The RB3721 is built with adjustable nosepads for a more secure, comfortable position on the face.

Good to Know

Progressive friendly. Suitable for driving.

Why We Love This Color

Black sits confidently in the RB3721 lineup — pairing black framing with dark grey polarized lenses for a look that works across the wardrobe.

Prescription Options

The RB3721 can be customized with prescription sunglass lenses to meet your prescription needs.

At Deziner Eyecare, ask about premium prescription sun lenses, customized grey and fashion tints, polarized options, and advanced anti-reflective treatments.

Product Details

Brand: Ray-Ban
Model: RB3721
Color Code: 002/B1
Frame Color: Black
Lens Color: Dark grey polarized
Frame Material: Metal
Lens Material: Polycarbonate
Lens Technology: Polarized Category 3P
Polarized: Yes
Frame Shape: Square
Frame Type: Full Rim
Fit: Adjustable Nosepads
Gender: Unisex
Prescription Compatible: Depending on prescription
Lens Width: 59 mm
Bridge Width: 17 mm
Temple Length: 145 mm
Lens Height: 45 mm
Size: 59-17-145 mm

The Look

Black / Dark grey polarized. Ray-Ban design.

The Ray-Ban RB3721 002/B1 pairs black framing with Dark grey polarized lenses — a best-selling Ray-Ban sunglass, ready to wear.