Over the years, we have witnessed a variety of masks created from sneakers, but this might be the first time a baseball cap was used to construct a mask. New York-based Japanese artist Shin Murayama unveiled the latest series of masks titled, Yankees Extreme Cold Weather Face Mask Unissued. These pieces were created for his latest exhibition, using military cold weather facemasks as an inspiration. A total of eight one-off masks will be sold exclusively through Nepenthes flagship stores in Tokyo, Osaka, and Hakata in Japan. The exterior of the mask is created from a New Era cap, while the inside lining is made from used college sweatshirts. Scroll down the page to preview a detailed look at these masks.