- TR-90 nylon frames
- Stainless steel spring hinges
- Choose LightWAVE glass or CR-39® scratch-resistant plastic lenses
- 100% UV protection
- Manufacturer's lifetime warranty
If you've got the guts you can swim with them, but we suggest you just kick back and relax while wearing them. Costa's Hammerhead 400 Polarized Sunglasses. Designed to deliver a great look and maximum coverage, the full-wrap Hammerhead Polarized Sunglasses feature TR-90 nylon frames with stainless steel spring hinges for comfort and durability. The Hammerhead 400 Sunglasses are available in two different lens types, LightWAVE glass or CR-39® scratch resistant plastic. Both lens materials are 100% polarized, 100% UV protected and offers heightened clarity, contrast and definition. Manufacturer's lifetime warranty.
LightWAVE glass lenses are 20% thinner and 22% lighter than typical glass lenses but they still exceed federal standards for impact-resistance.
CR-39 scratch-resistant lenses are fully functional, lightweight alternative to glass. This lens type offers all the same advantages of the LightWAVE glass but in a more affordable material.
How to choose your Costa lenses:Amber for driving, low-light conditions, and inshore fishing
Gray for water sports, beaches, and offshore fishing
Blue Mirror for bright sun, offshore fishing, and most water sports
Green Mirror for variable sun conditions, inshore and offshore fishing.