The results can be uncomfortable at best, and offensive at worst.
But with a little planning, there are ways to ensure everyone is happy with his choice this Christmas.
Co-owner of Honey Birdette Eloise Monaghan said men could benefit from a few tips, but had come a long way from buying red crotchless knickers for their ladies.
``You still get that a little bit. You'll get guys coming in and they're looking for what they want to see,'' she says. ``Material is a big thing _ men tend to go for the satiny feel, which women like as well as long as it's genuine.''