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23 - Metallic Gloss Copper - Hcl Bronze
Maui Jim GUARDRAILS MJ327 Sunglasses
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$283.85

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Color

Maui Jim GUARDRAILS MJ327 Sunglasses

02 - Gloss Black - Neutral Grey

  • Ships within 1 to 5 Days

    Shipping information is provided by the manufacturer.

MJ_327_02
23 - Metallic Gloss Copper - Hcl Bronze 23 - Metallic Gloss Copper - Hcl Bronze 23 - Metallic Gloss Copper - Hcl Bronze 02 - Gloss Black - Neutral Grey 02 - Gloss Black - Neutral Grey 02 - Gloss Black - Neutral Grey 17 - Silver With Blue And Light Blue - Neutral Grey 17 - Silver With Blue And Light Blue - Neutral Grey 17 - Silver With Blue And Light Blue - Neutral Grey
23 - Metallic Gloss Copper - Hcl Bronze
23 - Metallic Gloss Copper - Hcl Bronze
23 - Metallic Gloss Copper - Hcl Bronze
02 - Gloss Black - Neutral Grey
02 - Gloss Black - Neutral Grey
02 - Gloss Black - Neutral Grey
17 - Silver With Blue And Light Blue - Neutral Grey
17 - Silver With Blue And Light Blue - Neutral Grey
17 - Silver With Blue And Light Blue - Neutral Grey
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    Free Shipping
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    Price Match
  • Easy Returns
    Easy Returns
  • Licensed Opticians
    Licensed Opticians
Add To Cart For Lowest Price
$283.85

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Color

02 - Gloss Black - Neutral Grey
17 - Silver With Blue And Light Blue - Neutral Grey

*Swipe to view more color variants

  • Free Shipping
    Free Shipping
  • Price Match
    Price Match
  • Easy Returns
    Easy Returns
  • Licensed Opticians
    Licensed Opticians
DESCRIPTION RATINGS & REVIEWS PRESCRIPTION GUIDE

Named after a west shore surf break south of Lahaina where waves break close to shore, the Maui Jim Guardrails MJ327 sunglasses deliver the lightweight durability and optical clarity that have made Maui Jim a favorite among outdoor enthusiasts and everyday wearers alike. This modified aviator design features a double-bridge metal frame in a copper finish with dark brown and peach rubber temple tips—a distinctive look that stands out from traditional teardrop aviators.

MauiFlex Memory Metal & Featherweight Comfort

The Guardrails frame is built from MauiFlex memory metal, Maui Jim's proprietary alloy that remembers your face shape longer than traditional metal frames. This means the fit actually improves over time as the frame molds to your unique contours. Reviewers consistently mention how light these feel—some forget they're wearing them. The rubberized temple tips provide grip without pressure, though a few users note the rubber coating can shift slightly with heavy use. Adjustable nose pads let you dial in the perfect bridge fit.

At 58mm lens width and 43mm height, the Guardrails offer a shallower lens profile than classic aviators like the Mavericks, making them ideal for medium faces and those who want aviator style without oversized coverage. The modified aviator shape complements oval, round, and heart-shaped faces particularly well.

PolarizedPlus2 Lens Technology

Every pair of Guardrails features Maui Jim's patented PolarizedPlus2 lens technology—far more than basic polarization. These lenses eliminate 99.9% of glare and block 100% of harmful UV rays while enhancing color through a proprietary blend of three rare earth elements that boost reds, greens, and blues. The result is contrast and clarity that owners describe as revelatory. The HCL Bronze lens option provides a warm tint with excellent contrast for variable conditions, while Neutral Grey offers the highest light reduction for bright, direct sun.

The lenses are made from MauiBrilliant, Maui Jim's most advanced lens material—optics nearly as crisp as glass at one-third the weight. An oleophobic coating repels water, oil, and fingerprints, and the proprietary ClearShell scratch-resistant treatment keeps your view pristine even after years of use.

"Had this pair of sunglasses for well over 7-10 yrs." — Zappos reviewer

Prescription-Ready Aviators

The Guardrails frame is prescription-ready, accepting single-vision and progressive lenses with a power range of +3.00 to -6.50. This makes them a practical choice if you need vision correction but don't want to sacrifice Maui Jim's legendary lens quality. The full-rim metal construction provides the stability needed for prescription lens mounting.

Whether you're driving along the coast, fishing in bright sun, or simply running errands, the Guardrails deliver the performance and style that have earned Maui Jim The Skin Cancer Foundation's Seal of Recommendation. These aren't just sunglasses—they're an investment in how you see the world.

Product DetailsProduct Details

Color DetailsColor Details

Size DetailsSize Details

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Customer Reviews

Based on 1 review
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K
Kenneth Devore
Great

These are great glasses. I like the look and the clarity can’t be beat.

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Frequently Asked Questions

Are the Maui Jim Guardrails prescription-ready?

Yes, the Guardrails MJ327 are prescription-ready and can accommodate single-vision and progressive lenses with a power range of +3.00 to -6.50. The full-rim metal frame provides the stability needed for prescription lens mounting, and many optical retailers offer prescription lens services for this model.

What is MauiFlex memory metal and how does it work?

MauiFlex is Maui Jim's proprietary memory metal alloy that "remembers" the fit and shape of your face longer than traditional metal frames. This material is both durable and featherweight, allowing the frame to comfortably mold to your unique facial contours over time while maintaining its structural integrity. The result is a personalized fit that actually improves with wear.

What face size and shape do the Guardrails fit best?

The Guardrails are designed for medium-sized faces with measurements of 58mm lens width, 43mm lens height, 17mm bridge width, and 130mm temple length. The modified double-bridge aviator shape complements a range of facial shapes, particularly oval, round, and heart-shaped faces. The shallower lens height compared to classic aviators makes them especially suitable for those with high cheekbones.

What is PolarizedPlus2 technology and how is it different from regular polarized lenses?

PolarizedPlus2 is Maui Jim's patented lens technology that goes beyond basic polarization. It eliminates 99.9% of glare and blocks 100% of UV radiation while incorporating a blend of three rare earth elements that enhance color perception by boosting reds, greens, and blues. This creates superior contrast, clarity, and color vibrancy compared to standard polarized lenses that simply darken your view.

Which lens color should I choose for the Guardrails?

The HCL Bronze lens is ideal for everyday variable conditions from full sun to overcast, providing excellent contrast with a warm, subtle bronze tint. The Neutral Grey lens offers the highest available light reduction and is best for especially bright, direct sunlight, delivering rich color and sharpest contrast. Both options feature full PolarizedPlus2 technology with 100% UV protection.

How do the Guardrails compare to other Maui Jim aviators like the Mavericks or Baby Beach?

The Guardrails feature a modified aviator design with a shallower lens height (43mm) compared to the classic teardrop Mavericks, making them better for medium faces and those who want less coverage. They're slightly larger than the Baby Beach, which is more compact. The Guardrails use MauiFlex memory metal frames with rubberized temple tips, while the Mavericks and Baby Beach use different frame materials and constructions.

Compare With Similar Frames

How the Maui Jim GUARDRAILS MJ327 Sunglasses stacks up against the closest alternatives we carry.

This product
Maui Jim GUARDRAILS MJ327 Sunglasses
Maui Jim Maui Jim GUARDRAILS MJ327 Sunglasses $255.74
17 - Silver - Neutral Grey
Maui Jim Maui Jim MAVERICKS MJ264 Sunglasses $234.97
  • Classic large teardrop aviator shape is iconic and universally flattering
  • Larger lens coverage provides more sun protection
  • Available in more color combinations
View frame →
17 - Silver - Blue Hawaii
Maui Jim Maui Jim BABY BEACH MJ245 Sunglasses $234.97
  • Smaller, shallower lens ideal for petite faces and high cheekbones
  • Lighter weight and more compact design
  • Great for those who find traditional aviators too large
View frame →
17 - Silver - Neutral Grey
Maui Jim Maui Jim CLIFF HOUSE MJ247 Sunglasses Readers $234.97
  • Similar modified aviator aesthetic with contemporary styling
  • Squared lens shape offers a different look while maintaining aviator DNA
  • Medium fit comparable to Guardrails
View frame →
Read the full comparison

Maui Jim Guardrails vs. Mavericks vs. Baby Beach: Which Aviator Is Right for You?

Choosing between Maui Jim's aviator lineup comes down to fit, coverage, and style preference. All three models feature the same exceptional PolarizedPlus2 lens technology with 99.9% glare elimination and 100% UV protection, so your decision hinges on frame design and proportions.

Size and Fit Comparison

The Guardrails sit in the middle ground with a 58mm lens width and 43mm height—a modified aviator design with a shallower profile than classic teardrops. This makes them ideal for medium faces and those who want aviator style without the oversized look. The MauiFlex memory metal frame molds to your face over time for a personalized fit.

The Mavericks are Maui Jim's classic large teardrop aviator with bigger lenses that provide maximum coverage. If you have a larger face or simply love the iconic Top Gun look, the Mavericks deliver. However, reviewers note they can overwhelm smaller faces and may sit on high cheekbones.

The Baby Beach offers the most compact fit with shallower lenses designed specifically for smaller faces and high cheekbones. Multiple reviewers mention upgrading from Baby Beach to Guardrails or other models when they wanted just a bit more coverage.

Style and Construction

The Guardrails' double-bridge design and rubberized temple tips give them a modern, technical look that bridges classic and contemporary. The MauiFlex memory metal is exceptionally lightweight and durable. The Cliff House offers a similar modified aviator vibe with a more squared-off lens shape, while the Mavericks maintain the traditional teardrop silhouette that's been popular for decades.

Our Recommendation

Choose the Guardrails if you want a medium-sized modified aviator with memory metal comfort and a contemporary edge. They're the sweet spot for most face sizes and offer prescription compatibility. Opt for the Mavericks if you prefer maximum coverage and the classic aviator look. Go with the Baby Beach if you have a smaller face or high cheekbones and want a more compact aviator style. Whichever you choose, you're getting Maui Jim's industry-leading lens technology and build quality.

At a Glance

Maui Jim Mavericks MJ264 Sunglasses

Pros:

  • Classic large teardrop aviator shape is iconic and universally flattering
  • Larger lens coverage provides more sun protection
  • Available in more color combinations
  • Same PolarizedPlus2 lens technology as Guardrails

Cons:

  • Larger frame may overwhelm smaller or medium faces
  • Taller lens height can sit on high cheekbones
  • Slightly heavier than the Guardrails modified design

Maui Jim Baby Beach MJ245 Sunglasses

Pros:

  • Smaller, shallower lens ideal for petite faces and high cheekbones
  • Lighter weight and more compact design
  • Great for those who find traditional aviators too large
  • Same PolarizedPlus2 technology and UV protection

Cons:

  • May be too small for medium to large faces
  • Less coverage than Guardrails
  • Limited lens height may not suit all face shapes

Maui Jim Cliff House MJ247 Sunglasses

Pros:

  • Similar modified aviator aesthetic with contemporary styling
  • Squared lens shape offers a different look while maintaining aviator DNA
  • Medium fit comparable to Guardrails
  • Available with reader options for those needing magnification

Cons:

  • Different frame material (not MauiFlex memory metal)
  • Squared shape may not suit those wanting traditional aviator curves
  • Slightly different bridge and temple measurements

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