Having trouble determining which size Costa sunglasses fit best? If that’s the case, SportRx has the perfect Costa Mens sunglasses size guide for you. Sunglass Rob and Jonathan from Costa break down some of the most popular Costa Sunglasses and explain which size will be the right fit. With sizes ranging from a small to extra large, you’ll find Costa offers a wide range of sunglasses for all shapes and sizes. Check out our Costa Men’s Sunglasses Size Guide below!

Larger Sizes

Costa Cape

The Costa Cape is a hardcore pair of fishing sunglasses. The Cape has ventilation ports on the side of the temples to manage heat and sweat. Costa also put hydrolite along the temple and nose pads to ensure an optimal fit all day long.

Costa Cape

Costa Cape in Matte Black with 580 Blue Mirror Polarized lens

Cape Frame Dimensions

  • Bridge: 17mm
  • Frame Width: 132 mm
  • Temple Length: 115 mm
  • Lens width: 67mm
  • Lens height: 44.2mm

Shop Costa Cape

Costa Permit

The largest size that Costa offers would be found in sunglasses such as the Costa Permit. Most would consider this model a size double XL, as its even a little big for Rob’s larger sized head. At the same time, a larger frame such as this has lots of wrap and coverage. What’s more is that the Costa Permit specifically offers amazing vents in its design which prevent fogging.

Costa Permit in Matte Black with Blue lens

Permit Frame Dimensions

  • Bridge: 18mm
  • Frame Width: 139 mm
  • Temple Length: 117 mm
  • Lens width: 62mm
  • Lens height: 40mm

Shop Costa Permit

Costa Tasman Sea

Considered a classic pair of Costa fishing sunglasses, the Tasman Sea frames are ready to take on your next adventure. The Costa Tasman Sea sunglasses feature a large wrap around design to provide maximum coverage against the sunlight and wind. Per usual, Costa put their hydrolite rubberized material along the temples and nose bridge to ensure not even the biggest wave will knock these sunglasses off your face.

Costa Tasman Sea Sunglasses

Costa Tasman Sea in matte blue with 580 Gray lenses

Costa Tasman Sea Frame Dimensions

  • Bridge: 17.7mm
  • Frame Width: 134 mm
  • Temple Length: 129 mm
  • Lens width: 62.9mm
  • Lens height: 41.4mm

Shop Costa Tasman Sea

Costa Tuna Alley

The second largest size carried by Costa would be considered an XL size. The Costa Fish is a perfect example of this size. Following that, we have the Tuna Alley which fits like a size large. While this pair is unbelievably comfortable, the Tuna Alley is not for a huge head and maybe a little small for those with larger sized heads.

Costa Tuna Alley Prescription Sunglasses

Costa Tuna Alley in Matte Black with 580G Blue Mirrored Lenses

Tuna Alley Frame Dimensions

  • Bridge: 18mm
  • Frame width: 128mm
  • Temple length: 120mm
  • Lens width: 60mm
  • Lens height: 38mm

Shop Costa Tuna Alley

Costa Mag Bay

Constructed with a heavy duty TR 90 Nylon, spring hinges, and hydrolite; the Costa Mag Bay is always prepared to take on the harsh elements from mother nature.

Costa Mag Bay Prescription sunglasses

Costa Mag Bay in the shiny black with 580 blue mirrored lenses

Mag Bay Frame Dimensions

  • Bridge: 14.4mm
  • Frame Width: 135 mm
  • Temple Length: 132 mm
  • Lens width: 63.2mm
  • Lens height: 42mm

Shop Costa Mag Bay

Costa Reefton

Our last Large frame is the Costa Reefton. The Reefton features a large wrap around lens to provide maximum protection from sunlight and wind. Costa put hydrolite along the temples and nose bridge. This is Costa’s rubberized material that helps keep the sunglasses in place while you are out exploring.

Costa Reefton, Best Fishing Sunglasses

Costa Reefton in black with 580G Green mirrored lenses

Reefton Frame Dimensions

  • Bridge: 14.4mm
  • Frame Width: 135 mm
  • Temple Length: 132 mm
  • Lens width: 63.2mm
  • Lens height: 42mm

Shop Costa Reefton

Average Sizes

Costa Corbina

Moving into more of a medium/large fit we have the Costa Corbina. The Corbina has been a Costa staple for a while now and is very comfortable. This model is a bit less aggressive looking due to its smaller frame, but still maintains a full wrap design for maximum protection and visual coverage.

Costa Corbina in Tortoise with Green lens

Corbina Frame Dimensions

  • Bridge: 15mm
  • Frame width: 125mm
  • Temple: 120mm
  • Lens width: 67mm
  • Lens height: 39mm

Shop Costa Corbina

Costa Blackfin

For those of you who are looking to go down even further in size, SportRX carries the Costa Blackfin. While the Blackfin has a larger lens than the Corbina, it definitely has a significantly smaller fit due to its frame design.

Costa Blackfin Prescription sunglasses

Costa Blackfin sunglasses in matte black with green mirror 580 lenses.

Blackfin Frame Dimensions

  • Bridge: 14mm
  • Frame width: 143mm
  • Temple: 130mm
  • Lens width: 63mm
  • Lens height: 43mm

Shop Costa Blackfin

Costa Montauk

The Costa Montauk is for the hardcore fisherman and should be treated like a piece of equipment. Costa designed the Montauk with a ventilation system on the side of the temples to control heat and sweat. It also has hydrolite along the temples and nose bridge plus an 8 base wrap around design to always have you covered.

Costa Montauk

Costa Montauk in Matte Black Ultra with 580 Copper lens

Montauk Frame Dimensions

  • Bridge: 16mm
  • Frame Width: 126 mm
  • Temple Length: 115 mm
  • Lens width: 62.6mm
  • Lens height: 44.2mm

Shop Costa Montauk

Costa Fantail

Next, we have the Costa Fantail. This pair is going to be a perfect medium fit that you can find from Costa. The Fantail has hydrolite along the temples and nose bridge to provide a comfortable fit. Costa used a durable TR90 for the frame material so the Fantail can take on the harshest conditions.

Costa Fantail Driving Sunglasses

Costa Fantail in Blackout with 580 Gray Silver Polarized Lens

Fantail Frame Dimensions

  • Bridge: 16mm
  • Frame width: 140mm
  • Temple: 135mm
  • Lens width: 59mm
  • Lens height: 51mm

Shop Costa Fantail


Costa Jose

The Costa Jose sunglasses embody the life of legendary fisherman Jose Wejebe. They are a comfortable M fit with optical spring hinges and constructed with a durable TR 90 Nylon.

Costa Jose

Costa Jose in Black with Copper Silver Mirror Glass Lens

Jose Frame Dimensions

  • Bridge: 16.3mm
  • Frame Width: 132 mm
  • Temple Length: 130 mm
  • Lens width: 61.4mm
  • Lens height: 37.9mm

Shop Costa Jose

Costa Fathom

These hardcore Costa sunglasses were built for the open sea. Injected with a TR 90 Nylon material and the best-polarized lenses on the planet, the Costa Fathom will leave you speechless.

Costa Del Mar Fathom, Costa Sunglasses, Costa Del Mar, Fishing Sunglasses

Costa Fathom in tortoise with 580 Green Mirror lens

Fathom Frame Dimensions

  • Bridge: 17.5mmmp
  • Frame Width: 133 mm
  • Temple Length: 117.6 mm
  • Lens width: 60.5mm
  • Lens height: 34.8mm

Shop Costa Fathom

Smaller Sizes

Costa Brine

The last frame and smallest are the Costa Brine. Although this frame may be considered an S fit, the Costa Brine will always perform at the highest level. Constructed with a durable TR 90 nylon, ventilation system, and hydrolite material along the nose bridge and temple; these Costa sunglasses have everything you would want in a pair of fishing sunglasses.

Costa Del Mar Brine, Costa Sunglasses, Fishing Sunglasses

Costa Brine in tortoise with 580 blue mirror lenses

Brine Frame Dimensions

  • Bridge: 18.5mm
  • Frame Width: 133 mm
  • Temple Length: 117.6 mm
  • Lens width: 58.8mm
  • Lens height: 36mm

Shop Costa Brine


Now that you understand the sizes that Costa has to offer are you ready to find your perfect sized sunglasses? If that’s the case, then SportRx has you covered as we offer a wide range of Costa Sunglasses that will cover every range of sizes. So if you’re ready to shop for some awesome Costa sunglasses then check out our collection here at SportRx. And if you have any further questions please don’t hesitate to contact us!

Shop All Costa Polarized Sunglasses