Enhance EN3997 Eyeglasses: Lightweight Plastic Rectangle Eyeglasses

The Enhance EN3997 Eyeglasses brings a versatile classic rectangular silhouette that suits a broad range of wearers and occasions. Available in 10 colorways—Matte Black, Matte Indigo, Matte Purple, Matte Red, Matte Tortoise, Shiny Black, Shiny Indigo, Shiny Purple, Shiny Red, and Shiny Tortoise—these full rim prescription eyeglasses are crafted from lightweight plastic for a frame that's lightweight, durable, and comfortable enough for all-day wear at work, school, or on the go. Flex spring hinges automatically adapt to your face shape for a personalized, headache-free fit.

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.
• Durable Lightweight Plastic: High-grade polymer construction maximizes durability while keeping the frame light and comfortable even during extended wear.
• 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 Matte Black, Matte Indigo, Matte Purple, Matte Red, Matte Tortoise, Shiny Black, Shiny Indigo, Shiny Purple, Shiny Red, and Shiny Tortoise to match your personal style and wardrobe.
• Versatile Unisex Styling: The classic rectangular frame shape flatters a wide range of face shapes and works equally well for both professional and casual settings.

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)	52 mm
Bridge Width	19 mm
Temple Arm Length	145 mm
Frame Shape	Rectangle
Rim Profile	Full Rim Eyewear
Color Options	Matte Black, Matte Indigo, Matte Purple, Matte Red, Matte Tortoise, Shiny Black, Shiny Indigo, Shiny Purple, Shiny Red, Shiny Tortoise
Target Fit	Unisex Adult Fit

Why Choose Enhance EN3997 Prescription Glasses?

The Enhance Eyeglasses Collection is built around the belief that great eyewear should work as hard as the person wearing it. The EN3997 model's plastic construction resists the wear and tear of daily life while keeping the frame lightweight enough for all-day comfort. Whether you need them as reading glasses, prescription frames, or fashion eyewear, the skull temples distribute pressure evenly for a fatigue-free fit. The classic rectangular frame shape is one of the most universally flattering profiles available, suiting a wide range of face shapes and personal styles.

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 EN3997 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 EN3997 glasses heavy or uncomfortable? No. The 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 EN3997 frames? Rectangle frames are particularly flattering for round, oval, and heart-shaped faces, adding structure and visual contrast.