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Caius | Retro Style Sunglasses
- In stock, ready to ship
- Inventory on the way
- 30-day money-back guarantee
- Free shipping with UPS
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Perfect for both elegant and casual outfits – suitable for every occasion!
Our new Caius Retro sunglasses combine timeless vintage charm with modern comfort. A golden frame, rounded lenses, and subtle nature-inspired details give every element a refined, distinguished touch. Perfect for sunny city days, weekend strolls, or relaxing outdoors – wherever elegance and comfort matter most.

Why our customers love Caius:
✓ Complete eye protection – Polarized UV400 lenses cut glare and shield your eyes.
✓ Premium golden finish – Double elegant line for a discreet touch of luxury.
✓ All-day comfort – Lightweight frame with soft nose pads for a pressure-free fit.
✓ Timeless retro look – Wood-style temples add a unique, refined character.
Size Guide
Find your fit.
Our pieces follow standard US sizing. If you're between sizes, choose the larger size for outerwear and knitwear and your usual size for dresses. The Size Finder on every product page gives you a personal recommendation in seconds.
Women's clothing
| Size | US | Bust (in) | Waist (in) | Hips (in) |
|---|---|---|---|---|
| XS | 0–2 | 31–32 | 24–25 | 34–35 |
| S | 4–6 | 33–34 | 26–27 | 36–37 |
| M | 8–10 | 35–36 | 28–29 | 38–39 |
| L | 12–14 | 37.5–39 | 30.5–32 | 40.5–42 |
| XL | 16 | 40.5–42 | 33.5–35 | 43.5–45 |
| XXL | 18 | 43.5–45 | 36.5–38 | 46.5–48 |
Men's clothing
| Size | Chest (in) | Waist (in) | Neck (in) |
|---|---|---|---|
| S | 35–37 | 29–31 | 14–14.5 |
| M | 38–40 | 32–34 | 15–15.5 |
| L | 41–43 | 35–37 | 16–16.5 |
| XL | 44–46 | 38–40 | 17–17.5 |
| XXL | 47–49 | 41–43 | 18–18.5 |
Shoes
| Foot length (in) | Women US | Men US | EU |
|---|---|---|---|
| 9.0 | 6 | – | 36–37 |
| 9.4 | 7 | – | 37–38 |
| 9.7 | 8 | 6.5 | 38–39 |
| 10.0 | 9 | 7.5 | 40 |
| 10.3 | 10 | 8.5 | 41 |
| 10.6 | 11 | 9.5 | 42–43 |
| 11.0 | – | 10.5 | 44 |
| 11.3 | – | 11.5 | 45 |
| 11.7 | – | 12.5 | 46 |
Still unsure? Email info@fifthavenuestyle.com for personal sizing help.
Our products are made from high-quality materials such as cotton, silk, and linen. To preserve the quality and durability of these fine fabrics, we recommend washing them in the washing machine at a maximum temperature of 86 °F. This will keep your clothes looking beautiful for a long time and feeling comfortable against your skin.
Shipping: We ship your package free of charge with UPS or FedEx with tracking number.
Delivery processing time: All orders are processed within 1-2 business days (Monday - Friday). No orders are shipped or delivered on public holidays..
Tracking number: You will receive your tracking number immediately after processing and production are complete. It takes about 1-2 business days for the tracking code to appear on the tracking page.
Delivery times: Delivery takes place within 5-8 business days (Monday-Friday).