Costa Del Mar - Born On the Water in the fishing capital of the world, Costa sunglasses are made for those who dont just spend their lives on the water, they come to life on the water. Each pair is packed with polarized, color-enhancing 580 lens technology. The result? Less haze and enhanced contrast and clarity. Available in glass (580G) for superior clarity and scratch resistance or a lightweight, impact-resistant polycarbonate (580P), its like seeing in high-definition. Experience sunglasses for lifes great adventures.Category 3. General purpose sunglasses. High protection against sunglare, good UV protection, not suitable for driving at twilight, at night or under dull light.