Health underwear has a variety of possible effects for men: Increases blood circulation, prevent/improve prostate problems, and can also improve erection. They also reduce both bacteria, odour and itching.
Cotton and spandex health underpants, woven with fibres (e.g. tourmaline) which provide negative ions and FIR (8-14 micrometre infrared stimuli), and 20 bio magnets (2k Gauss) are integrated into large therapeutic areas.