Please reach out via our "Contact Us" form or use live chat if we are available. We cannot guarantee size changes after an order has been placed. If the item is still in stock and available for purchase on the website we will ask you to reorder the proper size and we will cancel and refund the original order. If the item is no longer available for sale on the website, changes to your order cannot be made.
If an item is pre-sold, we can only offer size exchanges if the item is still for sale on our website. If the item is no longer available we have closed sales of that item and it cannot be exchanged. We apologize for this, but it is necessary to make sure we have enough inventory for each order.