Kirk Originals "Jay"...which is a one off unique model that Jason Kirk and I worked up together. These glasses are solid, thick frames, and fit your head like a glove. naturally you may need to have them adjusted a bit, but otherwise these are ready to go. I have a bit of a big melon, so if you have a tiny head, these are not for you. you'll never find these anywhere else. these ooze Rock and Roll. Hand made in London, UK. Bid with confidence!