Anglers know as well as anyonethe best can always get better. Weve taken that sentiment to heart with the Costa Fantail PRO. The slimmed-down brother of the Blackfin PRO also boasts all the Costa PRO Series tech: a vented and fully-adjustable nose pad for a customizable fit; sweat channels and eyewire drains designed to help keep your vision clear; side shields, hooding, new stickier Hydrolite and metal keeper slots to help to keep your frames on your face and the sweat and sun out of your eyes.Costa’s 580G lenses are made from Lightwave glass, and feature encapsulated mirrors, making them scratch-proof. Additionally, the 580G lenses are 20% thinner and 22% lighter than average polarized glass. The Sunrise Silver Lens thrives in low light scenarios.