McAllister MC4512 Eyeglasses
McAllister MC4512 Eyeglasses

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McAllister MC4512 Eyeglasses

240 - Tortoise Gradient

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$62.31

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DESCRIPTION RATINGS & REVIEWS PRESCRIPTION GUIDE

The McAllister MC4512 Eyeglasses deliver a modern take on the classic rectangle frame, combining contemporary style with eco-conscious materials. This modified rectangular frame is constructed from plant-based resin derived from castor bean oil—a renewable, highly resilient alternative to standard petroleum-based plastics. The result is a lightweight, durable frame that's easier on the planet without compromising on quality or comfort.

Available in three gradient colorations—Tortoise Gradient, Pink Gradient, and Grey Gradient—the MC4512 features a two-tone design that adds visual depth and sophistication. The full-rim construction provides excellent durability and works well with a wide range of prescription strengths, including single vision, progressive, and bifocal lenses. With a 54mm lens width, 17mm bridge, and 140mm temple length, these frames offer a large fit suitable for most adults.

Sustainable Materials That Perform

McAllister's plant-based resin frames contain at least 45% bio-based material sourced from castor beans. Castor plants thrive in harsh, arid conditions where few other crops can grow, making them a sustainable choice that doesn't compete with food production. The oil is pressed from the beans, formed into pellets, then melted and injected into frames—creating eyewear that's strong, lightweight, and comfortable for all-day wear. This material reduces reliance on fossil fuels while delivering the same performance you'd expect from traditional plastics.

Who They're For

Rectangle frames like the MC4512 are particularly flattering on round and oval face shapes. The straight lines and horizontal emphasis add structure and contrast to softer facial features, creating a balanced, refined look. The unisex design works equally well for men and women, and the gradient finish adds a touch of personality without being overly bold. Whether you need them for work, daily wear, or as a versatile backup pair, these frames transition easily between settings.

The MC4512 is prescription-ready and ships with demo lenses that can be replaced by your optician or through our lens customization options. McAllister is part of Altair Eyewear, a division of VSP Global, and honors the legacy of John McAllister, one of the founders of American optometry. Each pair comes with an authentic designer case.

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Frequently Asked Questions

Are the McAllister MC4512 eyeglasses prescription-ready?

Yes, the MC4512 frames are fully prescription-ready and accept single vision, bifocal, and progressive lenses. The frames ship with demo lenses that your optician can replace with your prescription, or you can add prescription lenses during checkout through our lens customization options. The full-rim construction and 54mm lens width accommodate most prescription strengths.

What is plant-based resin and why is it used in these frames?

Plant-based resin is a bio-based plastic made from castor bean oil, a renewable alternative to petroleum-based plastics. The MC4512 frames contain at least 45% plant-based material. This sustainable material is strong, lightweight, and durable—offering the same performance as traditional plastics while reducing environmental impact. Castor plants grow in harsh conditions where other crops can't, making them an eco-friendly choice.

What face shapes look best in rectangle eyeglasses?

Rectangle frames like the MC4512 work especially well for round and oval face shapes. The straight lines and horizontal emphasis add structure and contrast to softer facial features, creating a balanced look. For round faces, rectangle frames provide a slimming effect by adding angularity. For oval faces, which are naturally versatile, rectangle frames add definition while maintaining the face's balanced proportions.

What are the frame measurements for the MC4512?

The McAllister MC4512 measures 54mm lens width, 17mm bridge width, and 140mm temple length (54-17-140). This is considered a large fit suitable for most adults. The lens height is approximately 42mm. These measurements are typically engraved on the inside of the temple arm for reference.

What colors are available for the MC4512?

The MC4512 is available in three gradient colorations: Tortoise Gradient (240), Pink Gradient (660), and Grey Gradient (050). Each features a two-tone gradient effect that transitions from a darker shade at the top to a lighter shade at the bottom, adding visual depth and a modern aesthetic to the classic rectangle shape.

Who makes McAllister eyewear?

McAllister is part of Altair Eyewear, a division of Marchon Eyewear and subsidiary of VSP Global. The brand was added to Altair's portfolio in 2021 and honors the legacy of John McAllister, a founder of American optometry who established his business in 1775. McAllister focuses on modern, original eyewear with sustainable materials and contemporary optical design.

Compare With Similar Frames

How the McAllister MC4512 Eyeglasses stacks up against the closest alternatives we carry.

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Compare the McAllister MC4512 to Similar Frames

If you're considering the MC4512, you might also want to explore other frames in the McAllister collection. All McAllister eyeglasses share the same commitment to sustainable plant-based materials and modern design, but each model offers its own unique aesthetic.

McAllister MC4512 vs MC4516

Both the MC4512 and MC4516 are priced identically at $62.31 and feature the same eco-friendly plant-based resin construction. The key difference lies in the frame design and color options. If you're drawn to the MC4512's gradient rectangle aesthetic but want to see what else is available at the same price point, the MC4516 is worth a look. Both are prescription-ready and offer the same quality construction.

McAllister MC4512 vs MC4519

The MC4519 is another rectangle option in the McAllister family, priced slightly higher at $65-70. If you're specifically looking for a rectangle frame shape and want to compare options within the same brand, the MC4519 offers an alternative design while maintaining the same sustainable materials and full-rim construction. The small price difference may reflect different sizing or design details.

McAllister MC4512 vs MC4502

At $69.82, the MC4502 sits at a slightly higher price point than the MC4512. Both are prescription-ready full-rim frames made from plant-based resin, but the MC4502 likely offers a different frame shape or design aesthetic. If you like McAllister's sustainable approach and quality but want to explore beyond the rectangle shape, the MC4502 is another solid option in the collection.

Why choose the MC4512? The MC4512 offers excellent value at $62.31 with its sustainable plant-based construction, versatile gradient colorations, and flattering rectangle shape. It's an ideal choice for round or oval face shapes, and the modified rectangle design strikes a balance between classic and contemporary. The three gradient color options give you flexibility to match your personal style, and the eco-friendly materials let you feel good about your purchase.

At a Glance

McAllister MC4516 Eyeglasses

Pros:

  • Same sustainable plant-based resin material
  • Similar price point at $62.31
  • Part of the same McAllister collection with consistent quality

Cons:

  • Different frame shape may not suit all face types
  • Color options may differ from MC4512
  • Without seeing the specific design, fit preferences may vary

McAllister MC4519 Eyeglasses

Pros:

  • Similar rectangle shape and full-rim construction
  • Comparable price range
  • Same brand quality and sustainable materials

Cons:

  • Slightly higher price ($65-70 vs $62)
  • May have different sizing or color options
  • Specific design details may appeal to different style preferences

McAllister MC4502 Eyeglasses

Pros:

  • Same McAllister quality and plant-based materials
  • Similar price range
  • Prescription-ready with full-rim construction

Cons:

  • Slightly higher price at $69.82
  • Different frame shape may suit different face types
  • Style differences may not appeal to those specifically seeking the MC4512 look

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