You can experiment with some different types of face coverings to find a good fit, from bandanas to buffs to neck gaiters . No matter what you use, make sure to wash it after your run to keep it clean . And give yourself some time to adapt: You may need to reduce your pace to run comfortably with a mask on. If you find it tough to breathe at any point, pull over and take a break, or call it quits entirely for the day.