The Costa Caldera Sunglasses are part of Costa's Untangled Collection. The frames are specially made from 100% recycled fishing nets, this is a solution to the effort to reduce plastic pollution on our planet. These sunglasses are defined by elegant curves. They feature a medium fit frame with a softly marked tumbled finish. These shades also have interior rubber temple grips for all day comfort and performance. They are named and inspired by the Central Chilean seaport. These sunglasses feature tumbled finish and textured detailing on the outer temples.