All Caddis lenses are designed to block blue light while reducing smudging and glare. Quality you can feel: premium, durable materials, thoughtful designs, and careful craftsmanship. Your Caddis frames come nestled on top of a soft, custom-designed microfiber bag for storage. Versatile style with a medium-large fit. Top of frame is engraved with “Port” and “Starboard.” Sturdy 5-barrel hinges ensure security and stability. Temples feature a wire core for customizable fit.