The AK457 Guide Jacket started out as a FYi initiative to design a purpose built jacket for working mountain guides. We spent a couple of seasons working with the guides at Baldface Lodge to figure out the functional architecture, and to test and improve the jacket for their needs. At the time Baldface received the entire production run, making them the most exclusively outfitted operation on the planet. A couple of seasons later AK457 was launched in Japan as a premium technical mini-collection, and the Guide Jacket evolved and went back into production. Here is the latest iteration of the Guide Jacket currently offered in Japan. Needless to say, these garments are the most technical AK outerwear we ever worked on. Japan always gets the good stuff!