Ocearch® Slack Tide
Polarized Glass (580)

Each purchase will help fund an OCEARCH expedition.
Ocearch® Slack Tide
Polarized Glass (580)

Each purchase will help fund an OCEARCH expedition.
The OCEARCH® SLACK TIDE Story
When the tide goes slack, so does the fishing. In Costa’s athleisure OCEARCH® Slack Tide sunglasses you can move on to another spot to chase a different adventure. This laidback west coast inspired frame is infused with functional elements - Hydrolite® padding, pin hinge, ventilation and 580 Polarized lenses so you can see through multiple tide changes.
Costa® believes in products with a purpose, and is proud to help support OCEARCH® in its mission to protect the sharks that keep our ocean ecosystems balanced. The OCEARCH® Collection helps fund research expeditions that generate critical data and put science on the side of sharks.
Explore the Cause
#SEEWHATSOUTTHERE
See what adventures others are taking their Costa sunglasses on. Share your own with #SeeWhatsOutThere.
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Frame Fit

Frame Size

Frame Measurement


-
1. Frame Width
- 137mm
-
2. Bridge Width
- 15mm
-
3. Lens Width
- 60.0mm
-
4. Lens Height
- 45.0mm
-
5. Temple Arm Length
- 130mm

Light conditions are constantly changing. To get the most out of Costa lenses, it's important to choose the right color. We offer seven lens colors that range from low-light like dawn to extremely bright light with blinding glare.
-
Blue Mirror Open reflective water
-
Green Mirror High Contrast
-
Gray
Silver Mirror Everyday activities -
Copper Silver Mirror Natural Contrast
-
Gray Everyday activities
-
Copper Variable light, Driving
-
Sunrise Silver Mirror Activities during low light





- C-Wall®Molecular Bond
- Glass Layer
- Encapuslated Mirror
- Polarized Film
- Glass Layer
- C-Wall®Molecular Bond

580G
Lightwave Glass
Superior clarity & scratch-resistant
- + Glass provides the best clarity in material
- + Encapsulated mirrors (between layers of glass) are scratch-proof
- + 20% thinner and 22% lighter than average polarized glass
U.S. PATENT NO. 6.334.680
U.S. PATENT NO. 6.604.824