[header] How to prevent yeast infections [title] Wear loose fitting clothes made from a breathable fabric. [step] Avoid wearing tight pants made from synthetic materials, such as spandex. Instead, choose clothing that is loose fitting and made from a breathable natural material, such as cotton. 
Tight fitting clothing is more likely to create a moist environment in the vaginal area and synthetic materials do not breathe as well as natural ones. Both of these factors make it more likely for a yeast infection to develop.