Prada PR B12S 17N20G — Root tortoise / Polarized green (external treatments, polarized)

Root tortoise acetate construction with Polarized green (external treatments, polarized) lenses define the Prada PR B12S 17N20G, a sunglass from Prada's current best-selling lineup.

Finished in Root tortoise, this colorway gives the PR B12S silhouette its own character.

The Polarized green (external treatments, polarized) lenses complete the look, balancing sun protection with the frame's color story.

Root tortoise

The 17N20G Root tortoise colorway pairs the PR B12S frame with a distinctive finish.

Built in acetate, the frame offers the durability and feel Prada is known for.

Prada's Architectural Eye

Under Miuccia Prada, Prada's eyewear became known for treating sunglasses as small-scale architecture — bold geometry, sculptural temples, and a design language drawn from the runway. The house triangle logo often appears integrated into the construction itself rather than applied as decoration.

Intellectual Statement Design

Prada sunglasses are designed for wearers who treat eyewear as part of a considered look. Proportions are deliberate, detailing is precise, and the overall effect is directional rather than decorative.

Polarized Clarity

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

Pillow Shape

A pillow-shaped lens softens the classic square — curved edges that feel modern and approachable.

High Bridge Fit

The PR B12S is built with high bridge fit for a more secure, comfortable position on the face.

Why We Love This Color

Root tortoise sits confidently in the PR B12S lineup — pairing root tortoise framing with polarized green (external treatments, polarized) lenses for a look that works across the wardrobe.

Prescription Options

The PR B12S 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: Prada
Model: PR B12S
Color Code: 17N20G
Frame Color: Root tortoise
Lens Color: Polarized green (external treatments, polarized)
Frame Material: Acetate
Lens Material: Crystal
Polarized: Yes
Frame Shape: Pillow
Frame Type: Full Rim
Fit: High Bridge Fit
Gender: Men's
Prescription Compatible: Depending on prescription
Lens Width: 55 mm
Bridge Width: 19 mm
Temple Length: 145 mm
Lens Height: 40 mm
Size: 55-19-145 mm

The Look

Root tortoise / Polarized green (external treatments, polarized). Prada design.

The Prada PR B12S 17N20G pairs root tortoise framing with Polarized green (external treatments, polarized) lenses — a best-selling Prada sunglass, ready to wear.