Toss in the wash with cold water. Air dry. Boom.
Pure comfort
"These shoes are absolute must buy! Will def be buying a second pair. Comfort and support 10/10. After reading reviews of people saying size down I can absolutely say DO NOT size down. I’m a true 9.5 in shoes and a 10 in tennis shoes and ordered a 9 which I had to return for the 10. The 10 fit perfectly, IMO stay with your true size or size up."