Anglers know as well as anyone—the best can always get better. 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.