These Dxtreme semi-rimless men's sports sunglasses are aerodynamic shades that are perfect for people who find themselves involved with physical activities on a regular basis. Whenever exercise junkies decide that they want to do something physical, they need to take the aerodynamic properties of what they're wearing into consideration. Some sunglasses might do the job, but still drag you down because their design is the furthest thing from aerodynamic. These shades are broken into conservative tones and some into more outlandish designs. Flamboyant sunglasses are common in the realm of exercise clothing. Everyone who works out on a regular basis takes risks anyway.