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The Costa Del Mar Tuna Alley Pro 9105 Sunglasses bring PRO Series performance to one of Costa's most trusted fishing frames. Named after the legendary 15-mile white sand strip near Gun Cay in the Bahamas where giant bluefin tuna migrate each spring, the Tuna Alley has been a favorite among serious anglers for years—and the Pro version takes it further with six fish-spotting upgrades built for all-day performance on the water.
Costa 580G Lens Technology: Optical Clarity That Cuts Through Water
Every pair features Costa's 580G glass lenses, the brand's premium optical technology designed by in-house light spectrum experts. The 580 designation refers to the wavelength of yellow light the lens filters out—eliminating haze and boosting reds, greens, and blues for sharper contrast and color definition. The lenses also block 100% of UV light and absorb harmful high-energy blue (HEV) light linked to macular degeneration and cataracts.
The "G" stands for glass, and Costa's LightWAVE glass construction is 20% thinner and 22% lighter than typical polarized glass while delivering scratch-resistant durability and the clearest optics in the industry. Mirrors are encapsulated between layers of glass for a crystal-clear, distortion-free view. All lenses are 100% polarized to kill reflective glare off water, chrome, and asphalt. The C-Wall coating adds extra scratch resistance and repels water, oil, and sweat for easy cleaning.
PRO Series Upgrades: Built for Serious Anglers
The Tuna Alley Pro's updated vent system and performance features set it apart from the standard model. Fully adjustable, vented nose pads let you dial in a custom fit and reduce fogging. Sweat management channels along the temples and eyewire drains redirect moisture away from your lenses. The improved Hydrolite rubber on nose pads and temple tips becomes tackier when wet, preventing slippage during dynamic activity. Top hooding and side shields provide wraparound sun protection and block peripheral glare, while metal keeper slots let you attach a retainer so you never lose your frames overboard.
The rectangular full-rim frame is constructed from Costa's bio-based nylon for a lightweight, durable build with a smaller carbon footprint. The 8-base wraparound curve (60mm lens width, 42mm height, 136mm frame width, 16mm bridge) offers maximum coverage and fits average to larger head sizes comfortably. The frame's vented hinge system promotes airflow to keep you cool and fog-free.
Prescription-Ready Performance
The Tuna Alley Pro 9105 is prescription-ready, so you can add your Rx and get Costa's legendary clarity with your exact vision correction. Available in 15 frame and lens combinations—including Green Mirror 580G (ideal for inshore fishing and variable light), Blue Mirror 580G (best for bright offshore conditions), Copper Silver Mirror, and Gray Silver Mirror—there's a setup for every fishing environment.
Product Details
Product DetailsModel
06S9105Shape
Gender
Material
Bridge Type
Rim Type
Age Group
Color Details
Color DetailsFrame Color
BlackColor Code
910502Color Description
BlackLens Color
Green Mirror 580g
Color Code
910508Color Description
GreyLens Color
Green Mirror 580g
Frame Color
BlackColor Code
910503Color Description
BlackLens Color
Copper Silver Mirror 580g
Frame Color
BlackColor Code
910504Color Description
BlackLens Color
Gray Silver Mirror 580g
Color Code
910511Color Description
MultiLens Color
Green Mirror 580g
Color Code
910510Color Description
GreyLens Color
Copper Silver Mirror 580g
Frame Color
BlackColor Code
910506Color Description
BlackLens Color
Sunrise Silver Mir 580g
Frame Color
BlackColor Code
910505Color Description
BlackLens Color
Gray 580g
Frame Color
BlackColor Code
910501Color Description
BlackLens Color
Blue Mirror 580g
Color Code
910512Color Description
MultiLens Color
Gray 580g
Color Code
910507Color Description
GreyLens Color
Blue Mirror 580g
Color Code
910509Color Description
GreyLens Color
Gray Silver Mirror 580g
Frame Color
BlackColor Code
910513Color Description
BlackLens Color
Blue Mirror
Frame Color
BlackColor Code
910514Color Description
Matte BlackLens Color
Gold MirrorLens Features
polarized
Frame Color
TortoiseColor Code
910515Color Description
Matte TortoiseLens Color
Green MirrorLens Features
polarized
Size Details
Size DetailsBridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Bridge Width
16.00Temple Length
123.00Size
6016-123
Excellent pair of sunglasses! Used them fishing and was very impressed. Best pair I own!
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Frequently Asked Questions
Are the Costa Tuna Alley Pro 9105 sunglasses prescription-ready?
Yes, the Costa Tuna Alley Pro 9105 is fully prescription-ready. You can add your prescription lenses while keeping Costa's 580 polarized lens technology and all the PRO Series performance features. Many optical retailers offer prescription services for this frame, allowing you to enjoy Costa's exceptional clarity with your exact vision correction.
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, while being 20% thinner and 22% lighter than typical polarized glass. Costa 580P lenses are made of polycarbonate, making them more impact-resistant and lighter overall, but slightly more prone to scratching despite the C-Wall protective coating. Both provide the same 580 color-enhancement technology and 100% UV protection.
What size head do the Tuna Alley Pro sunglasses fit?
The Tuna Alley Pro features a large lens front (60mm lens width, 136mm frame width) designed to fit those with average to larger head sizes. According to Costa's sizing guide, it's a good fit for average heads on the bigger side, though it may be slightly small for truly large heads. The fully adjustable nose pads help customize the fit for different face shapes.
What are the PRO Series upgrades on the Tuna Alley Pro?
The PRO Series upgrades include six key features: fully adjustable vented nose pads for custom fit and reduced fogging, sweat management channels and eyewire drains to redirect moisture, improved Hydrolite rubber that grips better when wet, top hooding and side shields for wraparound sun protection, metal keeper slots for retainer attachment, and a re-engineered vented hinge system for improved airflow.
Which lens color is best for fishing with the Tuna Alley Pro?
Green Mirror 580G lenses (copper base, 10% VLT) are ideal for inshore fishing and enhance contrast in variable light conditions. Blue Mirror 580G lenses (grey base, 10% VLT) work best for bright, full-sun offshore fishing. Copper Silver Mirror lenses are well-suited for stream fishing and varying light environments. The choice depends on your primary fishing conditions and light levels.
How do the Tuna Alley Pro compare to the standard Tuna Alley?
The Tuna Alley Pro features significant upgrades over the standard model, including fully adjustable vented nose pads (vs. fixed pads), sweat management channels, improved Hydrolite rubber formula, top hooding and side shields, metal keeper slots, and an enhanced ventilation system. The Pro is also only available in 580G glass lenses for maximum clarity, while the standard Tuna Alley offers both 580G and 580P options.
Compare With Similar Frames
How the Costa Del Mar Tuna Alley Pro 9105 Sunglasses stacks up against the closest alternatives we carry.
- Hydrolite coverage along cheeks and temples for maximum grip
- Slightly more streamlined look without visible vents
- Available in both PRO and standard versions
- Lower price point than the PRO version
- Available in both 580G glass and 580P polycarbonate lenses
- Same iconic Tuna Alley shape and style
- Taller and wider lenses (3cm more than Tuna Alley Pro) for extra coverage
- More square-shaped lenses for a casual, confident style
- Same PRO Series features if you choose the Reefton PRO
Read the full comparison
Costa Tuna Alley Pro 9105 vs. Similar Fishing Sunglasses
Choosing the right Costa fishing sunglasses often comes down to fit, features, and style. Here's how the Tuna Alley Pro 9105 compares to its closest competitors in our catalog.
Tuna Alley Pro vs. Costa Blackfin 9014
The Blackfin and Tuna Alley Pro are Costa's two most popular fishing frames, and they're remarkably similar in size (the Tuna Alley Pro has a slightly taller lens and wider frame). The biggest difference is the ventilation approach: the Tuna Alley Pro features visible vents at the bottom corners of each lens to promote airflow and prevent fogging, while the Blackfin relies on Hydrolite coverage along the cheeks and temples for sweat management. The Tuna Alley Pro's sharper curves and visible vents give it a more aggressive, fisherman-focused look, while the Blackfin appears more streamlined. Both manage perspiration effectively—the Tuna Alley Pro through airflow, the Blackfin through tacky Hydrolite grip. If you want maximum ventilation and don't mind the sporty aesthetic, choose the Tuna Alley Pro. If you prefer a cleaner look with full Hydrolite contact, go with the Blackfin.
Tuna Alley Pro 9105 vs. Standard Tuna Alley 9009
The PRO Series upgrades are substantial. The Tuna Alley Pro 9105 adds fully adjustable vented nose pads (vs. fixed pads on the standard model), sweat management channels and eyewire drains, improved Hydrolite rubber that's more durable and grippier when wet, top hooding and side shields for peripheral glare protection, and metal keeper slots for retainer attachment. The Pro is also only available in 580G glass lenses for maximum optical clarity, while the standard Tuna Alley offers both 580G and 580P polycarbonate options. The standard version costs less and is lighter if you choose 580P lenses, but you sacrifice the performance features that make the Pro ideal for serious, all-day fishing. If you fish frequently in challenging conditions and want every advantage, the Pro's upgrades are worth the investment.
Tuna Alley Pro vs. Costa Reefton 9007
The Reefton (especially the Reefton PRO) offers similar PRO Series features but with a more square lens shape and larger dimensions—the Reefton PRO lenses are 3cm taller and wider than the Tuna Alley Pro. This extra real estate provides additional sun coverage and a more casual, confident style, but the larger frame may not fit average head sizes as comfortably. The Tuna Alley Pro's rectangular shape and slightly smaller footprint make it more versatile for a wider range of face shapes and head sizes. If you have a larger face and want maximum coverage, consider the Reefton. If you prefer a more traditional rectangular fishing frame that fits most people well, the Tuna Alley Pro is the better choice.
Our Recommendation: The Costa Tuna Alley Pro 9105 hits the sweet spot for serious anglers—it offers all the PRO Series performance features, fits average to larger head sizes comfortably, and delivers Costa's best optical clarity with 580G glass lenses. The visible ventilation system and aggressive styling make it instantly recognizable on the water, and the adjustable nose pads ensure a custom fit. For dedicated fishermen who spend long days on the water and demand the best, the Tuna Alley Pro is hard to beat.
At a Glance
Costa Del Mar Blackfin 9014 Sunglasses
Pros:
- Hydrolite coverage along cheeks and temples for maximum grip
- Slightly more streamlined look without visible vents
- Available in both PRO and standard versions
- May fit a wider range of face shapes
Cons:
- No visible ventilation system like Tuna Alley Pro's corner vents
- Less aggressive, fisherman-focused aesthetic
- Similar price point without significant feature differences
Costa Del Mar Tuna Alley 9009 Sunglasses
Pros:
- Lower price point than the PRO version
- Available in both 580G glass and 580P polycarbonate lenses
- Same iconic Tuna Alley shape and style
- Lighter weight with 580P lens option
Cons:
- Fixed nose pads instead of fully adjustable
- No sweat management channels or eyewire drains
- Standard Hydrolite rubber (not the improved PRO formula)
- No top hooding, side shields, or metal keeper slots
Costa Del Mar Reefton 9007 Sunglasses
Pros:
- Taller and wider lenses (3cm more than Tuna Alley Pro) for extra coverage
- More square-shaped lenses for a casual, confident style
- Same PRO Series features if you choose the Reefton PRO
- Better for those wanting maximum sun protection
Cons:
- Larger frame may not fit average head sizes as well
- Less aggressive, fisherman-specific styling
- May feel bulkier on smaller faces