Prada PR B17S Rectangle Sunglasses
On orders over Dhs 500
Offer ends in
Root tortoise over dark brown, 54mm, 39mm deep, and nothing else offered. The PR B17S is a men's rectangle in acetate, its bridge 20mm and its arms 145mm, on a flat front. One variant. Root tortoise carries more red than a classic havana, and against a dark brown lens that warmth survives — a grey lens would cancel it entirely.
Most of our frames are “one size,” designed to fit a wide range of faces. A few styles come in multiple sizes. Use your current glasses as the best reference, or follow the quick steps below.
1) How to read frame size (on your glasses)
Look inside the temple (arm). You’ll see numbers like: 52□18–140
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52 = Lens width (mm)
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18 = Bridge width (mm)
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140 = Temple length (mm)
Match these to the new frame for the most reliable fit.
2) Quick fit by face width (no glasses handy?)
Use a ruler (millimeters) across your face at the pupils, or try the “credit-card test” (a card is ~54 mm wide).
| Face width | Typical lens width | Typical bridge | Temple length |
|---|---|---|---|
| Narrow | 48–51 mm | 15–18 mm | 135–140 mm |
| Medium | 52–54 mm | 16–19 mm | 140–145 mm |
| Wide | 55–57 mm | 17–21 mm | 145–150 mm |
Tip: Sunglasses often run 1–2 mm larger than optical frames for a comfortable, slightly looser fit.
3) One-size frames—how to choose
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Compare the listed size to your current frame stamp (e.g., if you wear 52□18–140, look for something close: 51–53 lens, 17–19 bridge, 140–145 temple).
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If between sizes, pick slightly larger for sunglasses and closer match for optical.
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Small adjustments (nose pads, temple bend) by an optician can fine-tune the fit.
4) What each number changes
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Lens width: overall frame width/coverage.
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Bridge: comfort on the nose; higher bridge = more space.
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Temple length: behind-ear comfort; longer temples for larger heads or if temples feel tight/short.
5) Common size examples
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Optical (unisex): 50–54 / 17–19 / 140–145
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Sunglasses (unisex): 52–56 / 16–20 / 140–150
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Smaller faces: start at lens width 48–50
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Larger faces: look at 55–57
6) Still unsure?
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Match your current frame numbers first.
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Check our product photos on model notes (if available).
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You can message us your current size (e.g., 52□18–140) and preferred fit (snug/standard/relaxed)—we’ll suggest options.
Prada
Milan, and the inverted triangle
Founded in Milan in 1913 by Mario Prada. The inverted triangle logo is the recurring eyewear signature, reworked three-dimensionally into the Symbole temples; Minimal Baroque remains the house's best-known sunglass.
Est. 1913
Product details
- ShapeRectangle
- RimFull Rim
- MaterialAcetate
- Size54□20
The Prada PR B17S is a full-rim rectangle sunglass for men, with an acetate front, acetate temples and nylon lenses. It has a high bridge fit and often suits round, oval and heart face shapes.
Root tortoise over dark brown, 54mm, 39mm deep, and nothing else offered. The PR B17S is a men's rectangle in acetate, its bridge 20mm and its arms 145mm, on a flat front. One variant. Root tortoise carries more red than a classic havana, and against a dark brown lens that warmth survives — a grey lens would cancel it entirely.
Frame
- Model code
- PR B17S
- Brand
- Prada
- Designed for
- Men
- Frame shape
- Rectangle
- Rim type
- Full Rim
- Frame material
- Acetate
- Temple material
- Acetate
Lenses
- Lens material
- Nylon
- Lens colour
- Dark Brown
- Polarised
- Photochromic
- Lens curve
- Base 2
Colour & size
- Frame colour
- Root Tortoise
- Colour code
- 17N06B
- Size
- 54□20 145 mm
- Size band
- L
Fit & size
Printed inside the temple as 54□20 145
Fit
Size band L, as graded by Prada
- Bridge
- High Bridge Fit
- Often suits
- Round, oval and heart face shapes
Compare with your current glasses
Enter the numbers printed inside the arm of a pair that fits you well.
Delivery & pickup
- 4-hour expressDubai only, on orders placed before 5 pm, Monday to Friday.
- Free UAE deliveryAll emirates, 1–2 working days.
- Collect in storeFrom Dubai Festival City, Ibn Battuta Mall, Outlet Mall and Festival Plaza. Find a branch
Returns & exchanges
- 7-day returnsUnworn, in the original packaging, with the OptiVision tag still attached.
- 14-day exchangesSame conditions — swap at any of our branches.
Warranty & what's included
- 1-year warrantyManufacturer warranty against manufacturing defects. Keep the warranty card from the box.
- Lifetime aftercareFree, unlimited cleaning and adjustments at any of our branches.
In the box
- Original packaging
- Hard case or soft pouch
- Cleaning cloth
- Warranty card
Contents can vary slightly by brand.
Payment options
- CardsCredit and debit cards, processed by Network International.
- WalletsApple Pay, Google Pay and Samsung Pay.
- TabbySplit into 4 interest-free payments.
- Cash on deliveryPay when your order arrives.
