Free Shipping
Price Match
Easy Returns
Licensed Opticians
The Costa Del Mar Brine II 9134 Sunglasses are built for anglers and water enthusiasts who demand serious performance. This updated version of Costa's popular Brine model delivers the brand's legendary 580 polarized lens technology in a refined rectangular wrap frame that blocks sun, wind, and glare from every angle.
Costa 580 Lens Technology: See What Others Miss
At the heart of the Brine II is Costa's patented 580 lens system, designed by in-house light spectrum experts specifically for on-water clarity. The technology filters out harsh yellow light at 580 nanometers and absorbs harmful high-energy visible (HEV) blue light—the wavelengths that cause eye fatigue, haze, and long-term damage including macular degeneration and cataracts. By blocking these wavelengths, reds, greens, and blues pop naturally, giving you sharper contrast and higher definition whether you're sight-fishing flats or navigating open water.
All Brine II lenses are 100% polarized to eliminate reflective glare and provide 100% UV protection. The proprietary C-Wall coating adds scratch resistance and repels water, oil, and sweat for easy cleaning—critical when you're spending long days in salt spray and sun. Available in both 580G glass (superior optical clarity, scratch-proof) and 580P polycarbonate (lighter, impact-resistant) versions, plus multiple mirror finishes including Green Mirror, Blue Mirror, and Sunrise Silver Mirror.
Refined Fit and All-Day Comfort
The Brine II features an 8-base wrap design that provides excellent coverage and side protection while maintaining a modern, streamlined look. Costa improved the frame geometry over the original Brine so it now fits a wider range of face sizes—from small to large heads—without pressure points. Double-injected Hydrolite rubber on the nose pads and temple tips grips better when wet, locking the frames in place through long days of fishing, boating, or any active water sport.
The lightweight nylon frame is both durable and comfortable for all-day wear. Retainer-ready temple tips let you attach any sunglass strap to keep your frames secure during active use. The rectangular shape and bent temples work well under hats and caps without interference.
Prescription-Ready Performance
The Brine II is prescription-ready, so you can get Costa's world-class lens technology with your exact vision correction. This makes them a practical choice for anglers who need both sun protection and clear vision on the water.
Whether you're targeting redfish in the shallows, running offshore for tuna, or just spending the day on the boat, the Costa Del Mar Brine II 9134 delivers the optical performance and durability that serious water sports demand. Available in 11 frame and lens combinations to match your conditions and style.
Product Details
Product DetailsModel
06S9134Shape
Gender
Material
Bridge Type
Rim Type
Age Group
Color Details
Color DetailsFrame Color
TortoiseColor Code
913408Color Description
Matte TortoiseLens Color
Green MirrorLens Features
polarized
Frame Color
BlackColor Code
913403Color Description
Matte BlackLens Color
Green MirrorLens Features
polarized
Frame Color
BlackColor Code
913406Color Description
Matte BlackLens Color
Green MirrorLens Features
polarized
Frame Color
BlackColor Code
913405Color Description
Matte BlackLens Color
Blue MirrorLens Features
polarized
Frame Color
BlackColor Code
913407Color Description
Matte BlackLens Color
Sunrise Silver MirrorLens Features
polarized
Frame Color
BlackColor Code
913401Color Description
Matte BlackLens Color
GrayLens Features
polarized
Frame Color
BlackColor Code
913404Color Description
Matte BlackLens Color
RoseLens Features
polarized
Frame Color
TortoiseColor Code
913409Color Description
Matte TortoiseLens Color
Gold MirrorLens Features
polarized
Frame Color
BeigeColor Code
913410Color Description
Matte SandLens Color
Copper Silver MirrorLens Features
polarized
Frame Color
BlackColor Code
913402Color Description
Matte BlackLens Color
Blue MirrorLens Features
polarized
Color Code
913411Color Description
Olive ShaleLens Color
Green MirrorLens Features
polarized
Frame Color
TortoiseColor Code
913414Color Description
Matte TortoiseLens Color
Blue MirrorLens Features
polarized
Frame Color
TortoiseColor Code
913415Color Description
Matte TortoiseLens Color
Green MirrorLens Features
polarized
Size Details
Size DetailsBridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
Bridge Width
17.00Temple Length
138.00Size
5917-138
California Proposition 65 Proposition 65 is a California regulation that requires special warnings to be presented to customers if a product contains certain quantities of chemicals or toxicants known to the State of California to cause cancer, birth defects, or other reproductive harm. The following warning applies to the products linking to this page:
WARNING: Reproductive Harm – https://www.p65warnings.ca.gov/Free Shipping within the contiguous US only (excluding Hawaii and Alaska) on all Orders over $100.
At DesignerOptics.com we are committed to the highest quality of service.
We ship products to all 50 US states as well as to many other countries around the world. We take all the measures to ship our items in a timely manner, directly to your door, almost anywhere in the world.
In stock products usually ship within two business days, but may take up to five business days*. When an order ships you will receive a confirmation email with the tracking information. You can also track your order by logging into your account.
We provide FREE SHIPPING on all orders over $100 We also offer overnight and second day delivery shipping options. Please note that when using next day or second day delivery it still takes 48 to 72 Business hours for the order to be processed.
The Designer Optics Low Price Guarantee is simple:
Designeroptics.com matches the price of all retail competitors and major online retailers.
How it works:
Place the frames in your cart
Before placing your order in add the following the comments box, Add the URL (web address) of the page where you found the lower-priced item,
Your credit card will not be charged until we have confirmed with you by phone or by email that your item qualifies for our Price-Match Guarantee.
Please Follow those easy steps for returns
1- Please fill out this form Return Authorization Form to get an RMA # you will receive a RMA # with instruction on how to return them within 48 to 72 Business hours from the time you submitted the form. Wait for our confirmation e-mail before shipping back the return
2- Send the product back to us following the instructions indicated in our e-mail and to the address we will provide you.
3- Make sure to confirm with us via e-mail the shipping date, the shipping service you used and the tracking number whenever you have
4- Include details of the return and how you would like for us to go about it (refund, store credit, exchange, etc). Designer Optics is not responsible for items damaged along the way.
Please allow us 3 to 5 business days from when items are received for us to process the refund. The amount to be refunded will not include shipping charges. if the order consists of 3 or more frames we will charge a 20% Restocking fee. otherwise only the shipping will be deducted.
Some exclusions may apply. Please note prescription lenses are final sale. We also do not accept returns on beauty products due to health and safety concerns. For more information please go to Returns
At Designer Optics, our skilled and experienced lab opticians play a crucial role in ensuring the quality and accuracy of your eyewear. With over 30 combined years of experience and full licensure, they review each prescription carefully and are equipped to answer any questions you may have.
Our state-of-the-art lab is equipped with the latest technology and equipment, including advanced edging and cutting technology, to produce lenses that are precise and accurate. Whether you need full frame or rimless lenses, our team is dedicated to providing the best possible results.
For personalized support, simply send an email to Support@designeroptics.com to request a call back from one of our friendly opticians.
Frequently Asked Questions
Are Costa Brine II sunglasses prescription-ready?
Yes, the Costa Del Mar Brine II 9134 is fully prescription-ready. You can have custom prescription lenses made with Costa's 580 polarized lens technology, combining vision correction with the same color enhancement, glare reduction, and UV protection as the standard lenses. Prescription limitations typically range from +3.00 to -5.00 combined sphere and cylinder.
What is the difference between Costa 580G and 580P lenses?
Costa 580G lenses are made of glass and provide superior optical clarity and scratch resistance, while 580P lenses are polycarbonate—lighter, more impact-resistant, and about $50 less expensive. Both offer the same 580 color-enhancement technology, 100% polarization, and UV protection. Glass is preferred for ultimate clarity; polycarbonate is better for active use and durability.
What size head do Costa Brine II sunglasses fit?
The Brine II features a medium fit with unique frame geometry designed to comfortably fit everyone from small to large head sizes. The 8-base wrap and adjustable Hydrolite nose pads allow the frame to adapt to different face shapes while maintaining proper coverage and optical alignment.
Do Costa Brine II sunglasses have anti-fog features?
The Brine II frame includes ventilation holes on the front that help combat fogging by increasing airflow. However, the lenses do not have an anti-fog coating applied. The improved ventilation design in the Brine II is an upgrade over the original model and helps reduce fogging in humid conditions.
Are Costa Brine II sunglasses good for fishing?
Yes, the Brine II is specifically engineered for fishing and water sports. The 580 polarized lenses cut glare on water surfaces and enhance contrast to help you see fish and structure below the surface. The Hydrolite rubber grips securely even when wet, the 8-base wrap blocks side light, and the frames are built to withstand saltwater environments with C-Wall coating that repels water and salt.
Can I attach a retainer strap to Costa Brine II sunglasses?
Yes, the Brine II features retainer-ready temple tips that allow you to attach any sunglass retainer or strap of your choice. This ensures your frames stay secure and won't be lost during active use on the water, while fishing, or during other outdoor activities.
Compare With Similar Frames
How the Costa Del Mar Brine Ii 9134 Sunglasses stacks up against the closest alternatives we carry.
- Larger frame provides maximum coverage for offshore conditions
- Adjustable nose pads for customized fit
- Considered the industry standard for bluewater fishing
- Similar 8-base wrap coverage and protection
- Costa 580 lens technology with full polarization
- Competitive price range ($133.49–$296)
Read the full comparison
Costa Brine II vs Fantail: Which Fishing Sunglass Is Right for You?
Both the Costa Brine II 9134 and the Costa Fantail 9006 are top-tier fishing sunglasses featuring Costa's legendary 580 polarized lens technology. The choice comes down to fit, weight, and your specific fishing conditions.
The Brine II is the lighter, more versatile option. At just 26 grams, it's noticeably lighter than the Fantail, making it more comfortable for all-day wear. The updated frame geometry fits a wider range of head sizes (small to large), and the bent temples work better under hats and caps. The Brine II also features improved ventilation to reduce fogging in humid conditions. It's ideal for inshore fishing, flats fishing, freshwater, and general water sports where you want serious performance without the bulk.
The Fantail is Costa's flagship offshore frame, offering maximum coverage and a larger lens area. It's the go-to choice for bluewater anglers who need the ultimate in side protection and glare blocking in extreme sun conditions. The Fantail features adjustable nose pads for a more customized fit, but the larger frame and heavier weight (especially with 580G glass lenses) can feel substantial during long days. Some anglers also note that the straighter temple arms can interfere with hat brims.
Bottom line: Choose the Brine II if you want a lighter, more adaptable frame that works across multiple fishing scenarios and fits comfortably under a hat. Choose the Fantail if you're primarily fishing offshore and want maximum coverage and the most proven frame in bluewater fishing. Both deliver the same exceptional 580 lens performance—the difference is in fit and coverage.
Costa Brine II vs Rinconcito: Similar Performance, Different Style
The Rinconcito 9016 is another Costa fishing frame with 8-base wrap coverage and 580 technology. While less well-known than the Brine II, it offers similar performance at a comparable price point. The main differences are in frame shape and aesthetic—the Rinconcito has a slightly different temple design and overall look. If you've tried the Brine II and want similar performance with a different style, the Rinconcito is worth considering. However, the Brine II has more customer reviews, more color options, and a proven track record of fitting a wide range of face sizes, making it the safer choice for most buyers.
At a Glance
Costa Del Mar Fantail 9006 Sunglasses
Pros:
- Larger frame provides maximum coverage for offshore conditions
- Adjustable nose pads for customized fit
- Considered the industry standard for bluewater fishing
- Slightly more refined, less sporty aesthetic
Cons:
- Heavier than Brine II, especially with 580G glass lenses
- Higher price point ($163.54–$296 vs $164–$248)
- May feel too large for medium or smaller faces
- Some users report the straight temples don't work as well under hats
Costa Del Mar Rinconcito 9016 Sunglasses
Pros:
- Similar 8-base wrap coverage and protection
- Costa 580 lens technology with full polarization
- Competitive price range ($133.49–$296)
- Prescription-ready like the Brine II
Cons:
- Less widely reviewed than the Brine II
- Different frame geometry may not fit as wide a range of head sizes
- Fewer color and lens options available
- Not as well-known in the fishing community