Such an amazing and stylist sunglasses; look at the vibrant colors, I like them very much.
Pros:-

• first of all these stylist sunglasses are the real quality product which is a result of a time paying research of the Prizm™. It serves you only the best quality in all sense.
• second thing it is not just a quality sunglass, it comes with a built in a smart real time coaching technique, on the basis of your performance it can create a special training program to assist you to become better than before.
• it can calculate all your physical data like speed, heart rate, distance traveled by you in a specific time, body temperature etc.
• this gadget also notify you about your missed workout and keep you on track.
• during your workout when you totally sweated out don't worry about your device it is totally waterproof.
• as a quality sunglass it provide you a Cristal clear sharp vision.
  Cons:-
• Nothing less in quality.
• may be a bit pricey.