The Costa Del Mar Caballito 400P Sunglasses are named after a Panamanian word for baitfish that means "little horse, which is fitting because these frames are ready to work. Whether you're following a machete through the jungle, cranking on a sail or looking for an open hammock, the Costa Del Mar Caballito 400P Sunglasses fit the bill. Flexible integral hinges, indestructible nylon frame, Hydrolite nose pads and excellent coverage make this frame ready for surf, sand or open water.