Your Core helmet should be snug at first. The comfort liner will break in after several hours of riding for a custom fit. A proper fit SHOULD NOT allow the helmet to move around without pulling the skin on your face. A loose fitting helmet IS EXTREMELY DANGEROUS as it can affect vision, sound, and decrease impact absorption. Please click Here to view the proper head position for your Core helmet. *Important: When trying on your Core helmet, you must fasten the chin retention system. When the helmet is fastened you should not be able to remove the helmet. If you are able to remove the helmet with the straps fastened, then your helmet is too large.