If the size a customer ordered is out of stock, Shoeline.com typically updates the order status to indicate that the item is unavailable. Customers may receive a notification about the unavailability of the size they ordered. In such cases, Shoeline.com often offers options for the customer, which may include selecting a different size, choosing an alternative product, or canceling the order altogether. It is important for customers to check their emails and the order status for any updates provided by Shoeline.com. The website usually has detailed information regarding inventory changes and order management, so it may be helpful to refer to the current web page for additional specifics. Customers can also find guidance regarding returns or exchanges, should that be necessary. Overall, Shoeline.com strives to keep customers informed and provide suitable alternatives when an ordered size is not available.