Designed with the Ironman triathlete in mind, Ironman Triathlon performance sunglasses offer a wide variety of sporty styles that provide long-lasting durability and comfortable fit. A triathlon is not just a run in the park - it's a serious thing; a test of one's strength and endurance. Naturally, the gear that participating athletes use to compete in the event should be high-performance as well. Ironman Triathlon sun glasses have a reputation of living up to the rigorous demands of this most taxing of sports and emerging with flying colors. This is the reason why these sports sun glasses are a must-have among many triathlon athletes; they know that it is something that will not let them down at the height of the competition.