There's a particular kind of confidence in a house that can sell you almost nothing and call it everything. Prada built an empire on that idea — on taking away rather than adding, on the belief that true luxury doesn't need to announce itself twice. The PR 17WSF 20D50Q51 is that philosophy in acetate: a rectangle frame, a tortoise finish named for a Miami juniper grove, and just enough hardware to remind you whose house you're in.

A House Built on Restraint

Prada's story doesn't start with excess — it starts with leather goods and an eye for craft that refused to shout. In 1913, brothers Mario and Martino Prada opened Fratelli Prada inside Milan's Galleria Vittorio Emanuele II, a glass-roofed arcade so elegant it's still nicknamed the city's "living room." They sold trunks, handbags, and travel accessories imported from England, and the quality was undeniable enough that in 1919, the House of Savoy — Italy's royal family — named Prada an Official Supplier. The brand's still-used triangular logo, with its knotted-rope emblem, is a direct descendant of that royal warrant.

That contrast matters here. Where Miu Miu plays, Prada edits. The PR 17WSF carries none of the era's maximalist noise — no oversized logos, no clutter — just a rectangle silhouette, a tortoise pattern with warmth in its grain, and a bridge and temple detail that state the name once, quietly, and let the shape do the rest.

Design: The Juniper Tortoise Story

Every colorway in Prada's Catwalk collection carries a name that means something, and Juniper Tortoise is no exception. It's a warm, layered acetate — cognac and umber tones swirled beneath a polished finish — named for the deep green-brown of juniper wood grain. On the PR 17WSF's rectangular shape, that pattern reads differently depending on the light: nearly solid espresso indoors, glowing amber-gold outside. It's a tortoiseshell built for versatility, not for blending in.

The frame is full rim, polished acetate, constructed for structure and durability rather than the featherweight flex of nylon. Acetate takes color and depth that plastic can't match, which is exactly why the house still hand-finishes it this way.

Fit: Built for a Lower Bridge

The PR 17WSF is cut for a Low Bridge Fit — Prada's designation for frames engineered with a higher, more contoured nose pad area and adjusted temple angle, designed for faces with closer-set eyes or a lower, flatter nose bridge. If you've tried rectangle sunglasses before and found them sliding or sitting crooked, this is the fit correction built to solve exactly that.

Dimensions run true to the Catwalk collection's rectangle sizing: a 51mm lens width, 37mm lens height, 20mm bridge, and 145mm temple length — proportioned for a regular-to-petite face shape without swallowing smaller features.

Lens: Grey, Bio-Nylon, and Ready for Prescription

The lenses are grey, made from Bio-Nylon (polyamide) rather than standard plastic or glass — a material Prada favors for its combination of light weight, high impact resistance, and cleaner environmental footprint versus petroleum-based lens materials. They carry a Category 2N tint rating with roughly 35% visible light transmission, landing solidly in the everyday-wear range: dark enough for bright Miami sun, light enough not to wash out indoor visibility the moment you step inside. A hard coating protects against scratches from daily use.

Because the frame is built on a Base 2 curve with adequate lens depth, it's also compatible with progressive prescriptions — worth knowing if you're shopping for a pair that can do double duty as your everyday Rx sunglasses.

Full Specifications

Who Should Choose the PR 17WSF

Why Buy from Lexor Miami

Caring for Acetate Frames

Polished acetate holds its shine for years with basic care: clean lenses and frame with a microfiber cloth and a lens-safe spray rather than paper towels or clothing, which can micro-scratch both the lens coating and the acetate's polish. Store the PR 17WSF in a hard case when not in use — acetate is more rigid than nylon or TR90, so it resists flex but can crack under direct pressure or a fall. Avoid leaving them on a car dashboard or in direct heat, which can soften and warp acetate over time.

Final Thoughts

The PR 17WSF 20D50Q51 isn't trying to win an argument. It's not the loudest pair in the case, and that's precisely the point Prada has been making since 1913 — that confidence doesn't need volume. Juniper Tortoise gives it warmth, the Low Bridge Fit gives it comfort, and the name on the temple gives it a story that runs back through a royal warrant, a granddaughter who rewrote the rules, and a house that still believes the best luxury is the kind you have to look twice to notice.

Frequently Asked Questions