Honing your technique is the key to mastering fly fishing and also how we approach the craft of making sunglasses. That's why these sport frames have patented vents on the side to make sure that, when things heat up, your lenses stay crystal clear. And even when the wind's blowing, their integral hinges will keep them steady and in place.

Costa Double Haul 580P includes patented polycarbonate lenses which are the clearest on the planet. They offer magnificent impact resistance and the polarization cuts down on glare.