Bought a pair of the JiMarti JM01 sunglasses and I must say, for only $20 these were an awesome deal. They are lightweight, yet look to be made very durable. They fit snuggly to your head and are very comfortable to wear for long periods. They are rather large, so if you have a tiny pea-head you may want to look for a little smaller framed glasses. I have owned Oakley's and Ray-Ban's and really must say that, although they aren't of the same quality as the(Much)higher prices shades, for the money you save, you can buy 3 or 4 pairs of these and be better for it in the long run. I am going to buy a couple more pairs very soon.
  With all that being said, the ONLY negative thing I can really say is that the packaging is terrible. They shipped these glasses to me with a Backpack, wireless mouse and a scientific calculator in the same box and had the glasses wrapped in a (very thin), sandwich bag type wrapper. I was amazed they made it to me in one piece. I am sure that if you're lucky enough to get yours in one piece you'll be very happy with them. So order a pair and cross your finger that Amazon doesn't ship them to you with the skid of bricks you purchased with them. I hope this review is helpful to those wanting to part with their hard earned cash?