How to Look After Your HMDD Sweatpants and Shorts to Make Them Last HMDD , standing for Happy Memories Don't Die— has developed a devoted customer base on the strength of pieces that feel intimate, not disposable. If you own a set of HMDD sweats or shorts, you no doubt already know they're not the kind of thing you'd want to carelessly wash on high heat. Fabric blends used in streetwear-inspired...