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The Costa Del Mar Rincon 9018 Sunglasses bring West Coast surf culture and serious optical performance together in one of Costa's most popular frames. Named after the legendary California point break, the Rincon features a bold rectangular shape with a classic straight bridge, wraparound coverage, and edgy curved temples that deliver both style and function for fishing, beach days, and everyday wear.
Costa 580 Lens Technology: Engineered for Clarity
What sets the Rincon apart is Costa's proprietary 580 lens technology—a multi-patented system that filters out harsh yellow light at 580 nanometers on the visible spectrum. By blocking this specific wavelength, the lenses naturally boost reds, greens, and blues, delivering enhanced color, sharper contrast, and superior definition. All 580 lenses provide 100% UV protection and also absorb high-energy visible (HEV) light known to cause eye damage.
The Rincon is available with two lens materials: 580G glass lenses offer the most optically correct clarity and are scratch-proof, while being 20% thinner and 22% lighter than average polarized glass. 580P polycarbonate lenses are the most impact-resistant option, ideal for active use, and include a scratch-resistant coating. Both are fully polarized to cut glare on water, snow, and pavement.
Built for Performance and Comfort
The frame is constructed from lightweight, durable bio-based TR90 nylon derived from castor plants—corrosion-resistant and able to maintain its shape in harsh ocean elements and extreme heat. Integral spring hinges provide a flexible, secure fit, while Hydrolite rubber nose pads and temple tips get tackier as you sweat, keeping the sunglasses locked in place during activity.
The Rincon offers an extra-large fit (frame width 133mm, lens width 63.5mm, bridge 12.5mm, temple 135mm), making it a go-to choice for those with broader faces or anyone who prefers generous coverage. The 6-base curve also makes the Rincon highly prescription-friendly, so you can add your Rx and enjoy Costa's legendary optics with vision correction.
Who the Rincon Is For
Anglers, boaters, and outdoor enthusiasts love the Rincon for its unmatched visual clarity and all-day comfort. The large lenses provide excellent protection from UV rays and side glare, while the versatile design transitions easily from the water to casual weekend wear. If you need a do-it-all frame that keeps up with fishing trips, lunch runs, and afternoon hangouts, the Rincon delivers.
Product Details
Product DetailsModel
06S9018Shape
Gender
Material
Bridge Type
Rim Type
Age Group
Color Details
Color DetailsColor Code
901807Color Description
179 Matte Smoke Crystal FadeLens Color
Gray 580p
Color Code
901815Color Description
156 Matte Smoke CrystalLens Color
Blu Mir 580p
Color Code
901813Color Description
11 Shiny BlackLens Color
Gray Sil Mir 580p
Color Code
901832Color Description
11 Shiny BlackLens Color
Gray 580g
Color Code
901805Color Description
156 Matte Smoke CrystalLens Color
Gray 580p
Color Code
901803Color Description
179 Matte Smoke Crystal FadeLens Color
Gray Sil Mir 580g
Color Code
901801Color Description
156 Matte Smoke CrystalLens Color
Green Mir 580g
Color Code
901831Color Description
156 Matte Smoke CrystalLens Color
Blu Mir 580g
Color Code
901809Color Description
181 Matte Black/shiny TortoiseLens Color
Gray 580p
Color Code
901812Color Description
11 Shiny BlackLens Color
Green Mir 580p
Color Code
901802Color Description
179 Matte Smoke Crystal FadeLens Color
Blue Mir 580g
Color Code
901833Color Description
11 Shiny BlackLens Color
Blu Mir 580g
Frame Color
BlackColor Code
901838Color Description
Matte BlackLens Color
Gray 580p
Frame Color
BlackColor Code
901837Color Description
Matte BlackLens Color
Blue Mirror 580p
Frame Color
BlackColor Code
901836Color Description
BlackLens Color
Green Mirror 580g
Frame Color
BlackColor Code
901835Color Description
BlackLens Color
Blue Mirror 580g
Color Code
901840Color Description
BlueLens Color
Gray Gradient
Frame Color
BlackColor Code
901841Color Description
BlackLens Color
Gray
Color Code
901839Color Description
Matte Blue FadeLens Color
Blue Mirror
Frame Color
TortoiseColor Code
901842Color Description
Matte TortoiseLens Color
Gold Mirror 580gLens Features
polarized
Size Details
Size DetailsSize
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Size
6311-140
Bridge Width
11.00Temple Length
140.00Size
6311-140
Bridge Width
11.00Temple Length
140.00Size
6311-140
Bridge Width
11.00Temple Length
140.00Size
6311-140
Bridge Width
11.00Temple Length
140.00Size
6311-140
Bridge Width
11.00Temple Length
140.00Size
6311-140
Bridge Width
11.00Temple Length
140.00Size
6311-140
Costa Del Mar Rincon 9018 Sunglasses
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I love the Costa's that I bought. They arrived early and they were exactly what I wanted. Thank you Designroptics.com.
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Love the sunglasses.
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Frequently Asked Questions
Are the Costa Rincon sunglasses prescription-ready?
Yes, the Costa Del Mar Rincon 9018 is highly prescription-friendly. The frame's 6-base curve and full-rim construction make it an excellent choice for adding prescription lenses. You can order the Rincon with single-vision, progressive, or reader prescriptions in either 580P polycarbonate or 580G glass lens material.
What's the difference between Costa 580P and 580G lenses?
580G lenses are made of glass and offer superior optical clarity and scratch resistance—they're 20% thinner and 22% lighter than average polarized glass. 580P lenses are polycarbonate, making them more impact-resistant and lighter, ideal for active use. Both lens types feature the same 580 technology that filters harmful light and enhances color contrast, and both are fully polarized with 100% UV protection.
What size fit is the Costa Rincon?
The Costa Rincon is an extra-large fit with a frame width of 133mm, lens width of 63.5mm, bridge width of 12.5mm, and temple length of 135mm. It's designed for those with larger or broader faces, and many customers note it's one of the best options for "big heads." For a smaller fit, Costa offers the Rinconcito, which has the same design in a medium size.
How does Costa 580 lens technology work?
Costa's 580 lens technology uses a multi-patented filter that blocks harsh yellow light at 580 nanometers on the visible light spectrum. By filtering out this unwanted light, the lenses naturally enhance reds, greens, and blues, providing superior color, contrast, and definition. The technology also absorbs high-energy visible (HEV) light that can cause eye damage and provides 100% UV protection.
What is the Costa Rincon frame made of?
The Rincon frame is made from bio-based TR90 nylon derived from castor plants. This material is lightweight, durable, and eco-friendly. It's also corrosion-resistant and maintains its shape even when exposed to harsh ocean elements and extreme temperatures. The frame includes integral spring hinges and Hydrolite rubber grips on the nose pads and temple tips for added comfort and security.
What's the difference between the Costa Rincon and Rinconcito?
The main difference is size. The Rincon is an extra-large fit (frame width 137mm) designed for larger faces, while the Rinconcito is a medium fit (frame width 131mm) that works well for both men and women with average face sizes. Both models share the same frame design, lens technology, materials, and features—just in different sizes to accommodate different face shapes.
Compare With Similar Frames
How the Costa Del Mar Rincon 9018 Sunglasses stacks up against the closest alternatives we carry.
- Medium fit works for average face sizes and both men and women
- Same 580 lens technology and bio-based frame construction
- Slightly lower price point ($133.49 starting vs $179)
Read the full comparison
Costa Del Mar Rincon vs. Rinconcito: Which Size Is Right for You?
If you're deciding between the Costa Rincon and Rinconcito, you're choosing between two versions of the same excellent frame—the difference comes down to fit. Both models share Costa's West Coast-inspired design, bio-based TR90 nylon construction, spring hinges, Hydrolite grips, and the same 580 lens technology that enhances color and contrast.
The Rincon (model 9018) is an extra-large fit with a frame width of 133-137mm and a lens width of 63.5mm. It's designed for those with larger or broader faces and provides maximum coverage and sun protection. Many customers with "big heads" praise the Rincon as one of the few premium sunglasses that fits comfortably without pinching. The oversized design also delivers a bold, modern aesthetic.
The Rinconcito (model 9016) is a medium fit with a frame width of 131mm. It works well for both men and women with average face sizes and offers the same performance features in a more compact, versatile package. The Rinconcito starts at a slightly lower price ($133.49 vs. $179) and is an excellent choice if the Rincon feels too large.
Our recommendation: If you have a larger face or prefer maximum lens coverage for fishing and water sports, the Rincon is your frame. If you need a medium fit or want a more everyday-wearable size, go with the Rinconcito. Both deliver the same legendary Costa optics and durability—just pick the size that fits your face.
At a Glance
Costa Del Mar Rinconcito 9016 Sunglasses
Pros:
- Medium fit works for average face sizes and both men and women
- Same 580 lens technology and bio-based frame construction
- Slightly lower price point ($133.49 starting vs $179)
- More versatile fit for a wider range of customers
Cons:
- Smaller lens coverage may not provide as much sun and glare protection
- Not ideal for those with larger or broader faces
- Less bold, oversized aesthetic compared to the Rincon