About The Brand With a mission to empower all women through fitness and beyond, Tamara Hill-Norton started Sweaty Betty in 1998. Designed for performance and style, Sweaty Betty believes in treating every day like it’s made for moving-and always pushing to do better-whether it’s in your workout or your life. By crafting clothes that are meant to last, and doing so from responsibly sourced materials and plastic bottles, Sweaty Betty helps you care for your body and the planet.