I am an aficionado of the Asda underpant. Dunno whether it's still five boxers for eight quid though. Irritatingly, I seem to need XL despite my petite self-image. I used to cut the button off but now I keep it and leave it undone. I find the button comes in handy when I'm lounging around in just boxer shorts in the company of women. The beast may well be asleep but it pays to ensure, especially when leaning forward, that the slumbering giant can't be viewed through an open cage door...