Spring of 2009, the folks at Oki-Ni and Evisu approached me to test their new Heritage cut in the LEFT No. 13 that were to be exclusively released. The Factory Feature and first week of wear can be seen and compared. I only washed once in the bath tub around the 6th month mark. I have enjoyed this pair a lot, great fit and extremely durable. I’m not certain on the availability of this certain line, but I know other LEFT pairs are available at most retailers.