Do I really need special shoes for Peloton or spin class?

Yes, if you want to get the most from your workouts. Clipless shoes provide a secure connection to the pedal that allows you to pull up on the upstroke, engaging more muscles and generating significantly more power than flat pedals. They also keep your feet properly positioned, reducing injury risk. Most studios require clipless shoes, and Peloton strongly recommends them. The improvement in workout quality is substantial and immediate.