By the 1930s, golfers were abandoning their knickers in favor of flannel trousers, usually white or gray. The shift was practical because many men went directly from the office to the course. Golfers also began playing without neckties. The 1933 U.S. Open was played during a severe heat wave, inspiring more lightweight, less formal clothes, though Walter Hagen and Gene Sarazen continued to wear foulard silk ties. Men's style magazines devoted pages to the wardrobe of Bobby Jones.