These revo-lens metal-frame men's Khan glasses look like they came straight out of the future. They are vibrant and colorful, which is common for anything you might find in the realm of athletic wear. Sporty sunglasses have to be eye-catching because exercise clothing is just as flamboyant. Because athletic people are risk takers in general, they are more likely to dress differently than people who live a sedentary lifestyle. The clothing that athletic people pick has to be chosen wisely.