Enhance EN3904 Eyeglasses: Durable Zyl Plastic Rectangle Frames for Men

The Enhance EN3904 Eyeglasses delivers bold, contemporary looks with all-day wearability in a dependable, everyday frame built for men. Available in 4 colorways—Black, Black Fade, Brown, and Smoke—these full rim prescription eyeglasses feature a confident classic rectangular profile crafted from durable zyl plastic, striking the ideal balance between professional presence and all-day comfort. Spring hinges flex with your face to eliminate pressure points during long wears.

Premium Features & Daily Comfort

• Flexible Spring Hinges: Built-in flex hinges automatically adjust to your face shape, preventing pinching and ensuring a secure, headache-free fit throughout the day.
• Zyl Plastic Construction: Premium zyl (cellulose acetate) delivers rich, deep color saturation and a high-polish finish that elevates the overall look of the frame.
• Full-Rim Construction: Sturdy full-rim build fully encases your lenses for maximum protection and a clean, polished silhouette.
• Prescription Ready: Arrives with clear optical demo lenses, ready to be customized with your single-vision, bifocal, or progressive prescription at any optical lab.
• Available Colors: Choose from Black, Black Fade, Brown, and Smoke to match your personal style and wardrobe.
• Strong Rectangle Profile: A confident classic rectangular frame shape that projects professionalism in the office and versatility on the weekend.

Exact Frame Dimensions & Fit Guide

Finding the right fit is essential when shopping for eyewear online. Compare these precise technical measurements against your current frames to confirm a comfortable, accurate fit:

Lens Width (Eye Size)	54 mm
Lens Height (B-Measurement)	33 mm
Bridge Width	17 mm
Temple Arm Length	145 mm
Frame Shape	Rectangle
Rim Profile	Full Rim Eyewear
Color Options	Black, Black Fade, Brown, Smoke
Target Fit	Adult Men / Male Medium Fit

Why Choose Enhance EN3904 Prescription Glasses?

The Enhance Eyeglasses Collection is engineered for men who demand both performance and presence. The EN3904's zyl plastic construction holds up against daily use and resists warping from heat or pressure. Whether you rely on them as reading glasses, computer glasses, or everyday prescription frames, the skull temples and spring-hinged arms deliver a fit that stays consistent from morning to evening. The classic rectangular profile is especially flattering on round, oval, and oblong face shapes.

Authenticity, Warranty & Shipping Information

Shop with complete confidence. Every pair of Enhance frames we sell is 100% authentic, brand new, and unused. Your purchase is fully protected by a 12-month manufacturer's warranty against manufacturing defects—we'll arrange a free replacement at no charge to you.

We offer free standard shipping on every order within the continental United States—no promo code or minimum order required. Expedited and overnight shipping options are available at checkout. Please note: Eyeglasses frames are non-refundable, but we gladly accept a one-time exchange for any current frame in our store within 5 business days of delivery, provided items are in new, resalable condition with original retail packaging.

Frequently Asked Questions (FAQ)

• Can I put my prescription in the EN3904 frames? Yes. The included demo lenses must be replaced by an optician or online optical lab with your custom prescription lenses—single-vision, bifocal, or progressive.
• Are the EN3904 glasses heavy or uncomfortable? No. The zyl plastic construction combined with a slim-profile full rim design keeps the total weight low, making them suitable for 12 or more hours of continuous wear.
• What face shapes suit the rectangle EN3904 frames? Rectangle frames are particularly flattering for round, oval, and heart-shaped faces, adding structure and visual contrast.