Description
Redefine your everyday style with the 5109 Heritage Square Frames,
a cornerstone of the Sai Optical Showroom premium collection. These frames feature a timeless square silhouette with a modern transparent twist, offering a bold yet sophisticated look that suits both round and oval face shapes perfectly.
Engineered with advanced TR-90 technology, these spectacles offer superior flexibility and impact resistance compared to standard plastic frames. The 50-18-140 sizing ensures a balanced, medium fit that stays secure throughout the day. Whether you are upgrading your prescription eyewear or seeking a stylish pair of computer glasses, the 5109 model provides a high-clarity aesthetic that enhances your features while providing maximum comfort.
Technical Specifications
- Model Number: 5109 – 50-18-140
- Frame Geometry: Bold Square / Wayfarer-Inspired
- Material: High-Definition TR-90 Polymer (Flexible, Unbreakable, and Ultra-Lightweight)
- Color: Crystal Clear High-Gloss Finish
- Measurements: 50mm (Lens Width) | 18mm (Bridge) | 140mm (Temple Length)
- Frame Weight: Ultra-light for pressure-free wear
- Lens Readiness: Fully compatible with Single Vision, Bifocal, and Progressive lenses
Premium Features
- STRESS-RESISTANT TR-90: Highly durable material that returns to its original shape even after intense bending.
- ARCHITECTURAL CLARITY: The premium transparent finish is UV-stabilized to prevent yellowing over time, keeping your look fresh and clean.
- ERGONOMIC BRIDGE: Designed with a 18mm bridge to provide optimal weight distribution and prevent sliding.
- UNISEX VERSATILITY: A classic square design that bridges the gap between masculine and feminine styles effortlessly.





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