How do I clean the Fly Fierce shoes? The insoles are machine washable. For the exterior, you may spot clean with soap and water. Related articles Do the shoes include cleats? How can I purchase FLY Fierce shoes? Do you have a shoe size chart? Do you have any care suggestions for the heart rate monitor? I like an item of apparel you posted on social media, is this available online? Comments 0 comments Article is closed for comments.