Though replaced by the M1917 Shoe, many doughboys were still wearing these in France in 1917.
Further research since we started making these has shown that they are actually Model 1912 Marching Shoes.
WPG reproductions are made in natural undyed leather like the originals. They will darken with use and exposure to oil, sunlight and polish:
"When we formed for a formal inspection we were a motley crew, olive-drab campaign hats, coats in the original green, shoes tan to dark bronze depending on the wearer's preference for shoe polish, and with breeches and leggings all shades between olive-green and dazzling white."