Rocky Mountain Featherbed was founded in Jackson Hole in Wyoming known as "the Cowboy State", U.S.A., in the late 1960s. The company created its iconic down vest with a seamless single-piece leather yoke for cowboys. The idea of the yoke came from the leather capes that Native Americans were wearing. Their down vests became very famous for their cold-proof and heat-retaining features like those of feather beds.
After it ended up disappearing in the 1980s, 35 SUMMERS CO., LTD (JAPAN) has succeeded in reproduction of the famous down vests in 2005 and even surpassed the original products after 20 years of research on the vintage Rocky Mountain Featherbed.