OCEARCH BLITZ TRUCKER HAT. 6-Panel trucker hat with structured cotton front and mesh back panels. Unique shark design patch. Snap back closure for quick release. This hat is the perfect accessory to your shark tracking adventure. Download the OCEARCH Global Shark Tracker from your app store to see where your favorite shark is going next. "Don't fear the fin." Fear a world without them.Sharks are in trouble, and without them the ocean ecosystem could collapse. Your purchase helps fund research expeditions aboard OCEARCH, a marine vessel and at-sea laboratory that generates critical data and puts science on the side of sharks.