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The Costa Del Mar Aransas sunglasses bring Costa's legendary 580G lens technology to a lifestyle-focused acetate frame that looks as good off the water as it does on the flats. Named after the only town on Mustang Island where Spanish horses once ran free, the Aransas blends coastal heritage with modern performance in a large, square-lens silhouette built for wide faces and anyone who wants serious coverage.
Costa 580G Glass Lenses: Clarity That Stands Apart
The Aransas comes equipped with Costa's 580G polarized glass lenses, a technology that goes well beyond standard polarization. These lenses selectively filter harsh yellow light at 580 nanometers on the visible spectrum and block harmful high-energy blue (HEV) light, enhancing reds, greens, and blues for sharper contrast and truer color. The result is a view that's noticeably crisper whether you're sight-fishing, driving, or watching the sun drop over the water. Costa's LightWave glass construction makes these lenses 20% thinner and 22% lighter than typical polarized glass, delivering superior scratch resistance and optical clarity without the bulk. The C-Wall molecular coating adds an extra barrier that repels water, oil, and sweat, so your view stays clear even when conditions get messy.
Large Acetate Frame with Classic Square Shape
The Aransas features a full-rim acetate frame in a classic square lens shape with a 58mm eye size and wide 133–135mm frame width. The vibrant ocean tortoise colorway shown here—with its striking blue-green and amber tortoiseshell pattern—captures the salt marsh aesthetic Costa is known for, and select variants use bio-based acetate made from 67% renewable materials. Metal hinges with Costa's signature "C" logo on the temples add a refined touch. This is a large frame designed for those with wider heads or anyone who prefers maximum lens coverage. One note from real-world use: the smooth acetate doesn't have rubber nose pads or temple grips, so some wearers find it can slide during heavy activity. If you need extra grip, Costa's Baffin offers a similar look with Hydrolite rubber contact points.
The Aransas is prescription-ready, so you can add your Rx and get Costa's world-class optics tailored to your vision. With 100% UV protection, polarization that kills glare, and a fit that works for larger faces, the Aransas delivers the performance Costa is known for in a frame that transitions from the boat to the beach to everyday wear. It's built for those who live with salt in their hair and sand between their toes—and want sunglasses that can keep up.
Product Details
Product DetailsModel
06S2005Shape
Gender
Material
Bridge Type
Rim Type
Age Group
Color Details
Color DetailsColor Code
200505Color Description
204 Shiny Ocean TortoiseLens Color
Copper 580g
Color Code
200506Color Description
204 Shiny Ocean TortoiseLens Color
Gray 580g
Color Code
200508Color Description
205 Matte Storm GrayLens Color
Gray Sil Mir 580g
Color Code
200502Color Description
11 Matte BlackLens Color
Blue Mirror 580g
Color Code
200514Color Description
BrownFrame Color
BrownLens Color
Gray Gradient
Color Code
200515Color Description
TortoiseFrame Color
TortoiseLens Color
Gold MirrorLens Features
polarized
Color Code
200509Color Description
206 Shiny KelpLens Color
Blue Mir 580gLens Features
polarized
Color Code
200507Color Description
205 Matte Storm GrayLens Color
Gray 580gLens Features
polarized
Color Code
200503Color Description
11 Matte BlackLens Color
Gray 580gLens Features
polarized
Color Code
200504Color Description
11 Matte BlackLens Color
Copper Silver Mirror 580gLens Features
polarized
Color Code
200510Color Description
206 Shiny KelpLens Color
Gray 580g
Size Details
Size DetailsSize
5816-139
Size
5816-139
Size
5816-139
Size
5816-139
Bridge Width
16.00Temple Length
145.00Size
5816-145
Bridge Width
16.00Temple Length
145.00Size
5816-145
Bridge Width
16.00Temple Length
145.00Size
5816-139
Bridge Width
16.00Temple Length
145.00Size
5816-139
Bridge Width
16.00Temple Length
145.00Size
5816-139
Bridge Width
16.00Temple Length
145.00Size
5816-139
Bridge Width
16.00Temple Length
145.00Size
5816-139
Great price!! Fast shipping!! Will definitely purchase from Designer Optics again!!
I
Love the price of these and the glasses
Great deal but was slow to receive but was worth the wait.
These shades are perfect I was a little worried at first ordering them because the price seemed too good to be true so I used PayPal for extra piece of mind. Got my shades about 10 days later and they are amazing. 100% legit will buy from these guys again.
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Frequently Asked Questions
Are the Costa Aransas sunglasses prescription-ready?
Yes, the Costa Aransas is prescription-ready and can be fitted with your Rx lenses. The frame's 6-base curve and acetate construction make it well-suited for prescription work, and you can choose between 580G glass or 580P polycarbonate lenses depending on your needs. Contact us to discuss your prescription options and lens recommendations.
What is the difference between Costa 580G and 580P lenses?
Costa 580G lenses are made of glass and offer superior optical clarity and scratch resistance—they're 20% thinner and 22% lighter than standard polarized glass. Costa 580P lenses are polycarbonate, making them more impact-resistant and lighter overall, ideal for active sports. Both filter the same harmful yellow and blue light and provide 100% UV protection, but glass delivers the sharpest view while polycarbonate offers better durability for high-impact activities.
What size face do the Costa Aransas sunglasses fit?
The Aransas is designed for large to wide faces, with a 58mm lens width and approximately 133–135mm total frame width. Costa classifies this as a wide fit, ideal for those who prefer extra coverage or have a larger head size. If you have a small to medium face, you may find the Aransas too large—consider the Costa Rinconcito or Baffin for a more compact fit with similar styling.
Do the Costa Aransas sunglasses have rubber nose pads or grips?
No, the Aransas features a smooth acetate frame without rubber nose pads or temple grips. Some wearers find the frame can slide during sweaty or active use. If you need a similar style with added grip, the Costa Baffin offers comparable square styling with Hydrolite rubber on the nose and temples for a more secure, no-slip fit.
What lens colors are best for fishing with the Costa Aransas?
For fishing, Costa's Copper 580G lenses excel in full sun and enhance contrast for sight-fishing on flats and inshore waters. Gray 580G lenses are versatile all-around performers that work well on the water and on land with natural color rendition. Blue Mirror and Green Mirror options add flash reduction in bright conditions. Choose based on your typical light conditions—copper for high contrast, gray for everyday versatility.
What comes included with the Costa Aransas sunglasses?
Your Costa Aransas sunglasses come with a protective Costa case and a cleaning cloth to keep your lenses in top condition. All Costa lenses include 100% UV protection, full polarization, and the C-Wall scratch-resistant coating. Costa also backs their sunglasses with a warranty program—check with the retailer or Costa directly for warranty and repair details.
Compare With Similar Frames
How the Costa Del Mar Aransas 2005 Sunglasses stacks up against the closest alternatives we carry.
- Medium fit (131mm frame width) suits average to smaller faces better than the Aransas
- Bio-based nylon frame with Hydrolite rubber nose pads and temple tips for no-slip grip
- Same 580G/580P lens technology and 6-base curve for excellent Rx compatibility
- Similar large square shape and wide fit to the Aransas
- Hydrolite rubber nose pads and temple grips prevent slipping during activity
- Same 580G/580P lens options with Costa's color-enhancing technology
Read the full comparison
Costa Aransas vs. Rinconcito vs. Baffin: Which Costa Lifestyle Frame Is Right for You?
The Costa Aransas sits in Costa's lifestyle collection alongside the Rinconcito and Baffin, all sharing the brand's legendary 580 lens technology but differing in fit, materials, and grip. Here's how they stack up.
Fit and Size: The Aransas is a large, wide-fit frame (58mm lens, ~133–135mm total width) designed for bigger faces and maximum coverage. The Rinconcito scales down to a true medium fit (131mm frame width) with the same West Coast styling, making it the go-to for average to smaller faces. The Baffin offers a large fit similar to the Aransas but with a slightly different temple design.
Frame Material and Grip: The Aransas uses acetate—smooth, premium, and rich in color, but without rubber grips. Some users note it can slide during sweaty activities. The Rinconcito and Baffin both use bio-based nylon frames with Hydrolite rubber on the nose pads and temple tips, which gets tackier when wet for a no-slip fit. If you fish, kayak, or sweat heavily, the rubber grips on the Rinconcito or Baffin are a real advantage. If you prioritize style and everyday wear, the Aransas' acetate delivers a more refined look.
Lens Technology: All three frames offer the same 580G glass or 580P polycarbonate lens options with Costa's color-enhancing, blue-light-filtering technology and 100% UV protection. The Rinconcito's 6-base curve makes it especially Rx-friendly.
Our Take: Choose the Aransas if you have a wide face and want a lifestyle frame with premium acetate styling for everyday wear. Go with the Rinconcito if you need a medium fit with rubber grips and lighter nylon construction. Pick the Baffin if you want large coverage with the added security of rubber contact points for active, on-the-water use.
At a Glance
Costa Del Mar Rinconcito 9016 Sunglasses
Pros:
- Medium fit (131mm frame width) suits average to smaller faces better than the Aransas
- Bio-based nylon frame with Hydrolite rubber nose pads and temple tips for no-slip grip
- Same 580G/580P lens technology and 6-base curve for excellent Rx compatibility
- Lighter weight than acetate; more impact-resistant for active use
Cons:
- Smaller lens coverage may not suit those who want maximum protection
- Nylon frame lacks the premium acetate aesthetic and color depth of the Aransas
- Less suitable for wide faces or larger head sizes
Costa Del Mar Baffin 9030 Sunglasses
Pros:
- Similar large square shape and wide fit to the Aransas
- Hydrolite rubber nose pads and temple grips prevent slipping during activity
- Same 580G/580P lens options with Costa's color-enhancing technology
- Better suited for fishing, kayaking, and high-sweat activities
Cons:
- Rubber grips can collect sand and debris in beach environments
- Slightly different aesthetic—more performance-focused than lifestyle
- May feel bulkier on the face compared to the sleek Aransas acetate