Lacoste L3647 Eyeglasses
Lacoste L3647 Eyeglasses

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Lacoste L3647 Eyeglasses

020 - Grey Lumi

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March_886895553001
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$66.46

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DESCRIPTION RATINGS & REVIEWS PRESCRIPTION GUIDE

The Lacoste L3647 Eyeglasses bring the French brand's signature sporty style to kids' prescription eyewear. Built from bio-injected acetate, these full-rim rectangle frames combine durability parents need with the bold colors kids want. The 50mm lens width fits children and tweens comfortably, while the iconic crocodile logo on each temple makes these frames instantly recognizable.

Built for Active Kids

Bio-injected acetate isn't just another plastic. This plant-based material is lightweight enough for all-day classroom wear but flexible enough to handle the playground. The frames feature optical-grade hinges that open and close smoothly, plus non-slip temples that stay put during sports and activities. Molded nose pads provide a secure, comfortable fit without the pressure points that can bother younger wearers.

Parents appreciate that acetate is hypoallergenic—important for children with sensitive skin. The material resists impact better than standard injection-molded plastic, so these frames can take the bumps and drops that come with active kids. Each pair is prescription-ready and compatible with single-vision lenses for nearsightedness or farsightedness.

Seven Colors to Match Their Style

The L3647 comes in seven distinct options: Grey Lumi, Matte Blue Lumi, Matte Green Lumi, Matte Black, Havana tortoise, Blue Lime Lumi, and Red White Lumi. The translucent "Lumi" finishes give the frames a modern, dimensional look that stands out from flat-colored alternatives. Whether your child prefers classic neutrals or vibrant statement colors, there's a version that fits their personality.

Lacoste has designed eyewear since the brand's tennis-inspired sportswear roots, and that heritage shows in the L3647's clean lines and functional details. The rectangle shape works well for a variety of face shapes, and the 16mm bridge and 135mm temples are proportioned specifically for younger wearers—not just scaled-down adult frames.

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Frequently Asked Questions

Are Lacoste L3647 eyeglasses prescription-ready?

Yes, the Lacoste L3647 frames are fully prescription-ready and compatible with single-vision lenses for nearsightedness or farsightedness. The frames feature a 50mm lens width and are designed to accommodate standard prescription lenses. You'll need your child's current prescription from their eye doctor, including their pupillary distance (PD) measurement.

What age range are the L3647 frames designed for?

The Lacoste L3647 is designed for children and tweens, typically fitting ages 8-14. The 50mm lens width, 16mm bridge, and 135mm temple length are proportioned specifically for younger faces. For the best fit, measure your child's current glasses or have them try on frames with similar dimensions.

What is bio-injected acetate and why is it good for kids' glasses?

Bio-injected acetate is a plant-based plastic derived from cotton and wood pulp that's lightweight, hypoallergenic, and more flexible than standard injection-molded plastic. It's ideal for kids because it resists impact, bends without breaking easily, and won't irritate sensitive skin. The material is also more durable than petroleum-based plastics, making it better suited for active children.

Do the L3647 frames have flex hinges?

Yes, the Lacoste L3647 features high-end optical hinges designed for durability and comfortable fit. While specific hinge construction varies by model, Lacoste kids' frames are engineered to withstand frequent movement and the wear-and-tear of daily use by children.

What lens options work best for kids' Lacoste frames?

For children's eyeglasses, polycarbonate lenses are the top recommendation because they're impact-resistant and won't shatter on impact. They're also 30% thinner and lighter than standard plastic lenses. All polycarbonate lenses include built-in UV protection, which is important for protecting developing eyes during outdoor activities.

How do I clean and care for acetate eyeglasses?

Clean acetate frames with lukewarm water and mild soap, then dry with a soft microfiber cloth. Avoid leaving the frames in hot cars or exposing them to harsh chemicals or solvents, as acetate can be damaged by extreme heat. Store them in a protective case when not in use to prevent scratches and keep the frames in good condition.

Compare With Similar Frames

How the Lacoste L3647 Eyeglasses stacks up against the closest alternatives we carry.

Read the full comparison

Lacoste L3647 vs. L3804B vs. L3803B: Which Kids' Frame Is Right?

All three models—the L3647, L3804B, and L3803B—are built from the same bio-injected acetate and share Lacoste's sporty DNA. The choice comes down to fit, color preferences, and style.

Lacoste L3647: The best all-around option for most kids. With seven color choices including translucent Lumi finishes, the L3647 offers the widest variety. The 50mm lens width fits the broadest age range (roughly 8-14), and the rectangle shape is universally flattering. Starting at $55, it's also the most budget-friendly entry point.

Lacoste L3804B: Choose this if your child loves bold, playful color-blocking and wants something that stands out. The glow-in-the-dark temple arms on select colors are a fun feature that younger kids especially enjoy. The 51mm lens width works better for tweens or kids with slightly larger faces. Expect to pay a bit more ($62.77 starting price).

Lacoste L3803B: Another solid choice at the same $55 starting price as the L3647, with a 51mm lens width. The geometric shape is slightly more angular than the L3647's classic rectangle. If your child has already outgrown 50mm frames or prefers a bit more lens coverage, this is worth considering.

Our take: The L3647 hits the sweet spot for most families. It offers the most color options, fits the widest age range, and starts at the lowest price. The translucent Lumi finishes give it a modern edge that kids appreciate, while the classic rectangle shape reassures parents looking for something that won't look dated in six months. If your child is 12+ or has a larger face, step up to the L3804B or L3803B for the extra millimeter of lens width.

At a Glance

Lacoste L3804B Eyeglasses

Pros:

  • Colorful, lively palette with fun color-blocking
  • Rubber crocodile logo on temples
  • Some models feature glow-in-the-dark temple arms
  • 51mm lens width (slightly larger than L3647)

Cons:

  • Slightly higher starting price
  • May be too bold for kids who prefer understated styles
  • Limited to specific color combinations

Lacoste L3803B Eyeglasses

Pros:

  • Same price point as L3647
  • 51mm lens width for slightly larger fit
  • Glow-in-the-dark temple options available
  • Rectangle/geometric shape

Cons:

  • Fewer color options than L3647
  • May not suit all face shapes
  • Similar style may not offer enough differentiation

Lacoste L3632 Eyeglasses

Pros:

  • Traditional look that blends easily with any outfit
  • Splash of color on temples for subtle personality
  • 47mm lens width for smaller faces
  • 18mm bridge for wider nose fit

Cons:

  • Smaller lens width may not fit older tweens
  • Less sporty aesthetic than L3647
  • Higher starting price point

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