"Pfc Joseph E. Day (1918-2009), in underpants, holds a puppy named "Invasion" in a German helmet, Le Dezert, France, 1944. Concerning underwear, it was largely an invention of the 1930s. On 1935, an engineer named Arthur Kneibler, designed the world's first briefs in Chicago. During World War II, elastic waistbands and metal snaps gave way once again to button fasteners due to rubber and metal shortages. Undergarments were harder to find as well, since soldiers abroad had priority to obtain them. By the end of the war, Jockey and Hanes remained the industry leaders in the US, but Cluett, Peabody and Company made a name for itself when it introduced a preshrinking process called "Sanforization", invented by Sanford Cluett in 1933, which came to be licensed by most major manufacturers."