All products featured on SELF are independently selected by our editors. However, when you buy something through our retail links, we may earn an affiliate commission. Here at SELF, beyond sturdy sports bras and sneakers, leggings are hands down the most essential part of our workout wardrobes. And not just for exercise—for everyday, too. You can never own enough, but a high-quality pair that isn’t too sheer or saggy often costs an arm and a, er, legging. That’s why we’re excited to relay that one of our SELF award-winning activewear and shapewear brands, Spanx, is having a major flash sale on its best-selling leggings—today only.