2M - Matte Black - Neutral Grey
Maui Jim CASTLES MJ728 Sunglasses
$261.08

You save 0%

Color

Maui Jim CASTLES MJ728 Sunglasses

2M - Matte Black - Neutral Grey

  • IN STOCK

    Product will be shipped within one business day. For quick delivery choose an expedited shipping service at checkout.

MJ_728_2M
$261.08

You save 0%

Color

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

The Maui Jim CASTLES MJ728 Sunglasses deliver a refined take on the classic aviator silhouette with a sophisticated double-bridge design and squared teardrop lenses. Constructed from durable monel metal and nickel silver, these unisex polarized sunglasses combine timeless style with exceptional build quality that resists corrosion and maintains its shape through years of wear.

What sets the Castles apart is Maui Jim's proprietary PolarizedPlus2® lens technology with SuperThin Glass—delivering the absolute crispest optics available while being 32% thinner and lighter than standard glass. These polarized lenses eliminate 99.9% of glare, block 100% of harmful UVA and UVB rays, and enhance colors to reveal vivid detail and sharp contrast even in the brightest sunlight. Available in four distinctive colorways including Neutral Grey, HCL Bronze, Blue Hawaii, and Hawaii Lava, each lens is optimized for specific lighting conditions.

The Castles feature adjustable rubber nose pads for a customized, stable fit during any activity, and the frame is prescription-ready for those requiring corrective lenses. With a 62mm lens width and medium-to-large fit, these aviator sunglasses complement oval and oblong face shapes beautifully. Whether you're on the water, behind the wheel, or simply enjoying the outdoors, the Maui Jim Castles offer the durability, comfort, and optical performance that serious eyewear enthusiasts demand.

Product DetailsProduct Details

Color DetailsColor Details

Size DetailsSize Details

Customer Reviews

Based on 5 reviews
100%
(5)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
K
Kaytee Ray

Maui Jim CASTLES MJ728 Sunglasses

M
Marat Karalitskiy
Maui Jim glasses

Best price around and arrived on time, and packaged well. Would buy from this site again

C
Chan a Trinh
Ship

Arrived on time , very satisfied.

M
Mark Fasolino
Great source for glasses

I was checking out at sunglass hut and right before I did, I found Designer Optics. I chose to go with then because I saved 20% on the glasses. They shipped very quick, I received tracking information, and within 10 days they were at my house. The Maui Jim's I purchased are awesome and authentic Maui Jim glasses. I would highly recommend designer Optics to anyone who is looking for glasses.

L
Lois Jankeloff
Great

Great

Frequently Asked Questions

Are Maui Jim Castles prescription-ready?

Yes, the Maui Jim Castles MJ728 can be fitted with prescription lenses. Most Maui Jim sunglasses, including the Castles, are prescription-capable and must be processed through an authorized Maui Jim prescription retailer or qualified optical professional who can install custom Rx lenses while maintaining the frame's integrity and warranty coverage.

What is Maui Jim PolarizedPlus2 lens technology?

PolarizedPlus2 is Maui Jim's patented multi-layer lens technology that goes beyond basic polarization. It eliminates 99.9% of glare, blocks 100% of harmful UVA and UVB rays, and uses rare earth elements to enhance color and contrast for unrivaled visual acuity. The Castles feature SuperThin Glass lenses, which provide the absolute crispest optics available—32% thinner and lighter than standard glass with superior scratch resistance.

How do Maui Jim Castles compare to Mavericks?

The Castles and Mavericks are both aviator styles, but the Castles feature a more squared lens shape with a double-bridge design and monel metal/nickel silver construction, while the Mavericks have classic teardrop-shaped lenses and titanium frames. The Castles are slightly larger and offer a more contemporary aviator aesthetic, whereas the Mavericks deliver the iconic traditional aviator look. Both feature PolarizedPlus2 technology and adjustable nose pads.

Are the Castles heavy because of the glass lenses?

The Castles do have more weight than plastic lens alternatives due to the SuperThin Glass construction, which customers note in reviews. However, the glass is 32% lighter than standard glass, and many wearers find the trade-off worthwhile for the superior optical clarity and scratch resistance. The adjustable nose pads help distribute weight comfortably, though those seeking the lightest option may prefer Maui Jim's MauiBrilliant or MauiPure lens materials.

What face shapes work best with the Castles aviator style?

The Maui Jim Castles aviator sunglasses best complement oval or oblong face shapes due to their classic aviator silhouette with squared lenses. The 62mm lens width and double-bridge design provide medium-to-large coverage, making them suitable for average to larger faces. The adjustable nose pads allow for customization to achieve optimal fit and optical alignment across different facial structures.

What is monel metal and why is it used in the Castles frame?

Monel is a nickel-copper alloy (approximately two-thirds nickel, one-third copper) prized for its exceptional durability, corrosion resistance, and malleability. In the Castles, monel metal combined with nickel silver creates a frame that resists stress and maintains its shape without breaking or bending easily. This material is highly resistant to metallic fatigue, ensuring long-term structural integrity even with daily wear, though those with nickel sensitivities should be aware of the alloy composition.

Compare With Similar Frames

How the Maui Jim CASTLES MJ728 Sunglasses stacks up against the closest alternatives we carry.

Read the full comparison

Maui Jim Castles vs. Other Premium Aviators: Which Should You Choose?

The Maui Jim Castles MJ728 occupies a distinctive position in Maui Jim's aviator lineup—bridging classic aviator heritage with contemporary refinement. If you're deciding between the Castles and other Maui Jim aviators, here's what sets them apart.

Castles vs. Mavericks: Classic vs. Contemporary Aviator

The Maui Jim Mavericks MJ264 represent the quintessential teardrop aviator—the shape that defined the style. The Mavericks feature lightweight titanium frames and that iconic curved lens silhouette that's been a staple since aviation's golden age. They're perfect if you want the most traditional aviator look that pairs effortlessly with everything from casual to business attire.

The Castles, by contrast, offer a more squared lens shape with a sophisticated double-bridge design. The monel metal and nickel silver construction provides a different aesthetic character—slightly more vintage-industrial compared to the Mavericks' sleek titanium. The Castles are also slightly larger (62mm vs 61mm) and deliver a more modern interpretation of the aviator style. Choose the Castles if you appreciate contemporary refinement and want an aviator that stands out from the crowd while maintaining timeless appeal.

Castles vs. Cliff House: Size and Fit Considerations

The Maui Jim Cliff House MJ247 shares the Castles' squared aviator aesthetic but in a medium fit (59mm). If you have a smaller to average face size or high cheekbones, the Cliff House's more compact proportions may provide better coverage without overwhelming your features. The Cliff House also features rubber ear pieces for enhanced comfort.

The Castles excel for those needing a larger frame with more coverage. The 62mm lens width and adjustable nose pads make them ideal for medium to large faces, and the extra lens real estate provides superior peripheral protection. If you've found other aviators too small or want maximum sun coverage, the Castles deliver.

Castles vs. Guardrails: Traditional vs. Sport-Inspired

The Maui Jim Guardrails MJ327 take the aviator concept in a bold, sport-influenced direction with more aggressive styling and modern lines. They're excellent for active lifestyles and those who prefer a contemporary, athletic aesthetic.

The Castles maintain a more refined, versatile character that transitions seamlessly from outdoor adventures to urban settings. The classic double-bridge design and balanced proportions make them appropriate for a wider range of occasions. Choose the Castles if you value timeless sophistication over sport-specific styling.

The Castles Advantage: SuperThin Glass Optics

All these aviators feature Maui Jim's renowned PolarizedPlus2 technology, but the Castles' SuperThin Glass lenses deliver the absolute crispest optics in Maui Jim's lineup. If optical clarity is your highest priority and you don't mind a bit of extra weight compared to plastic alternatives, the Castles' glass lenses provide unmatched visual acuity, superior scratch resistance, and color enhancement that reveals every detail with stunning precision.

Bottom line: Choose the Castles if you want a refined, contemporary aviator with larger coverage, premium monel/nickel silver construction, and the ultimate in optical clarity through SuperThin Glass lenses. They're the ideal choice for discerning eyewear enthusiasts who appreciate the intersection of classic design and modern craftsmanship.

At a Glance

Maui Jim MAVERICKS MJ264 Sunglasses

Pros:

  • Classic teardrop aviator lens shape—the most iconic aviator silhouette
  • Lightweight titanium frame construction for all-day comfort
  • Slightly lower starting price point ($235.60 vs $260.77)
  • Traditional aviator aesthetic pairs with virtually any outfit

Cons:

  • Less contemporary styling compared to the Castles' squared lenses
  • Titanium frame may not offer the same vintage character as monel/nickel silver
  • Teardrop shape may not suit all face shapes as well as the Castles' squared design

Maui Jim CLIFF HOUSE MJ247 Sunglasses

Pros:

  • More square lens shape with classic double nose bridge design
  • Medium fit (59mm) better suited for smaller to average face sizes
  • Rubber ear pieces provide enhanced comfort during extended wear
  • Rectangular lens shape is universally flattering across face shapes

Cons:

  • Smaller lens size may not provide as much coverage as the Castles (62mm)
  • Less modern aesthetic compared to the Castles' refined design
  • May not suit those specifically seeking a larger aviator frame

Maui Jim GUARDRAILS MJ327 Sunglasses

Pros:

  • Modern, sport-inspired aviator design with bold styling
  • Similar price range ($268.50) to the Castles
  • PolarizedPlus2 technology with multiple lens color options
  • Contemporary aesthetic appeals to those seeking a less traditional aviator

Cons:

  • More aggressive styling may not suit classic or conservative tastes
  • Less versatile for formal or business-casual settings than the Castles
  • Sport-oriented design may not provide the timeless appeal of traditional aviators

Ask our AI

Ask Designer Optics