When washing your bras, panties and other fine washables like hose and lingerie, use a delicate soda based fabric wash such as Forever New Fabric Wash. Regular detergents contain harsh chemicals that breakdown fabrics. If you wash your delicates in the washing machine, placing them in a Mesh Lingerie Wash Bag like this one from Forever New as it will protect your delicate clothing from being wrapped around the agitator and other clothing. Avoid putting delicate clothing in the dryer. The heat of the dryer breaks down lycra, spandex and elastic, so you will find yourself replacing your fine lingerie and delicate washables more frequently.