When one thinks of Sports performance eyewear and sunglasses, we envision a wrap type of frame that is made for every type of sport. Today like medical professionals, sport performance sunglasses are becoming specialized. For example District Vision sunwear for runners which they call a Performance Eyewear System. The frames feature D+ lens technology, rubber/titanium nose pad and temple tips.

Keiichi
Nagata speed blade for runners is an ultra-lightweight nylon and titanium frame 
Kaishiro; as tested with a range of runners between California, Colorado and New York City. The frame features a reinforced hinge and 55 millimetre diameter lens.

If you are a runner and like the concept, you can purchase online or any of the retailers they have listed.

District Vision