The jogging sweater still stinks after washing. The new tennis socks are no longer soft after a few weeks. And the cool print on the shirt for the gym came off after just a couple of washes. Almost every amateur athlete should be familiar with these and similar problems with washing and caring for their sportswear. With a few tricks, you can get even the most stubborn smell of sweat out of your outfits – and ensure that your shirts, pants, socks and shoes last a long time. Do running shoes belong in the washing machine? What good is the “housewife trick” of washing with baking soda? And how do I pollute the environment as little as possible when washing? At WELT, a laundry expert explains the perfect techniques.