Stockings are still sometimes preferred to pantyhose for a number of reasons. These may include the perception that stockings, and the associated use of garters , lace , high fashion, appliqué and the exposure of the thigh, are more aesthetically pleasing, or sexually attractive and alluring than pantyhose. They are also regarded as cleaner and healthier, while pantyhose tend to create a humid and warm environment in the crotch area, increasing perspiration and potentially promoting fungal and bacterial growth. Stockings, on the other hand, provide ventilation in the crotch, resulting in a reduction of fungal and bacterial growth. Both nylon stockings and pantyhose in being sheer share the advantage of being quick-drying compared to pants. Spare pairs are also easy to carry if they are ruined. If laddered they can be replaced 'one at a time' which provides a cost advantage over tights.