The right fit for cycling shoes Bike shoes should fit similarly to a running shoe: not too snug, and not too loose. There should be space for your toes to wiggle and your arch should be supported. If your heels are slipping in and out of your shoes, we’d suggest going down a size. Related articles Peloton Bike Shoes My shoes are the wrong size, how can I exchange them? Recommended Bluetooth Headphones Buying A Used Peloton Bike Attaching and tightening your Bike cleats