Finding men's walking shoes in purple might be a bit of a challenge as it's not a very common color for this type of footwear. However, you can try searching online on websites that specialize in athletic or walking shoes. You may also want to check with popular shoe brands that offer a wide range of colors and styles to see if they have any options available. Another option could be to explore custom shoe options where you can select the color you desire. Keep in mind that availability may vary depending on the season and current trends.