I have owned & worn this bra/panty set for years now! I do hand wash or gentle cycle w/ other intimates & either line dry or low/no heat gentle tumble. That being said, this set has weathered the storm! I do wear to work on occasion (very active/physical profession) & everything stays in place comfortably - not to mention smooth lines & looks great. I also really appreciate how complimentary this cut, color & material is to my body.