Arena Cobra Tri Mirror Triathlon Unisex Swimming Goggles are the ultimate solution for triathlons and intensive swimming. This unique design stops the flow of water over the lenses for optimal vision, especially for long distances. The hard mirrored lenses protect eyes from glare, offer a crystal-clear view and are made to endure seasons of training. Equipped with special 3D Japanese TPE seals for a watertight fit and maximum comfort. Like all our goggles, these are fogless and provide UV protection. Customize for a perfect fit with the adjustable split strap and interchangeable nose bridges.