A cotton men's blazer, typically machine-made, can provide a comfortable and stylish addition to a man's wardrobe. However, you mentioned "Pattern" without specifying the pattern. Men's cotton blazers can come in various patterns, such as pinstripes, solid colors, checks, herringbone, plaids, or other designs, depending on the specific style and fashion trend. The choice of pattern can vary, allowing men to select blazers that best suit their preferences and the intended occasion.