For delivery before 12/25, order by 12/14 5PM EST with Economy shipping*
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Sweeping silhouette, performance optics.

Ideal for fashionable outings and daily activities, the Costa Women's Isla Polarized Sunglasses fuse a bold, curved design with crystal-clear optics. These stunning shades block 100% of harmful UV radiation, and they cut glare off water and shiny surfaces with their polarized lenses.

The Costa 580 polycarbonate lens filters out yellow and high-energy blue light, enhancing color definition and reducing haze on the most sun-drenched of afternoons. In addition, this lens features a Costa C-Wall coating to repel dirt, oil, and water when you're tanning by the pool or running errands around town.

Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

  • Costa 580 polycarbonate lens
  • Polarized with 100% UV protection
  • Costa C-Wall lens coating
  • Nylon frame
  • Hydrolite nose pads
  • Hard case included
  • Reviews
  • Q & A


  • Familiarity: I've used it several times
  • Fit: True to size

First, let me say that these sunglasses are fabulous and are not on sale ANYWHERE except for Backcountry. I placed my order and qualified for free 2 day shipping. My order arrived the VERY NEXT MORNING! Backcountry is awesome!!!! Now on to the sunglasses.... These are exceptional. Very clear, LOVE, LOVE LOVE!!! Very stylish! I purchased a pair at full price and returned them as soon as I saw them on Backcountry for 50% off! WOW! Thanks Backcountry! You are the best!!!