Do you get special diapers for men?

Yes they are available in the market. However not all brands have them. I can recommend you TENA. If I am not wrong the product is named are 'men protective underlevel 4'. You know what this is designed like men's underwear, to fit the anatomy. Good for daily use, these pads are made up of special tissues which keep odor free for long periods. Moreover it is absolutely breathable to avoid sweating. Also there are some standard sizes which fits most men. Functionally this is as good as popular 'depend underwear'.