These Khan smoke- or mirror-lens semi-rimless men's sunglasses are the right kind of shades for people who want to get involved in physical activities. They are aerodynamic and come in a number of inviting colors, which go well with the adventurous options that are available in the exercise-clothing industry. It's difficult for someone who wants to exercise on a regular basis to wear shades that have bulkier frames. You will want to switch out your current shades for ones that are more in line with other types of sports sunglasses. All the other options you add to your workout outfit should be similarly aerodynamic.