Sorry to hear your helmet doesn't fit, returning your helmet is super easy! You would need to first ensure that you are within our 14 day returns period, you would also need to ensure that the items have not be worn outside and are returned to us in the same state in which they were delivered to you in. If you head over to the link below, you will be taken to our returns information page.
Follow the steps on this page to return your items, you would need to ensure that you also download and fill out the return form, this would need to be filled out and placed inside of the box upon returning your items to us. If you do come unstuck at any step of the process then our Customer Experience team are ready and waiting to assist you with anything you do need. You can reach them on the below email: