No problem! If you need a new size, message us on Facebook or contact us at support@imouri.com. Our policy lasts 30 days. If 30 days have gone by since the original purchase date, unfortunately we cannot offer you an exchange. Exchanges for a new size can be made once upon request.To be eligible for an exchange, your item must be unused and in the same condition that you received it. Please  contact us (email: support@imouri.com) for instructions on how to begin your exchange.