A back ordered item is a product that is not currently in stock. No worries, we have ordered more and they will be arriving shortly. On the product page of the item you wish to purchase, you can press the "Notify Me When Available" button and enter your email address to receive notification when the item is back in stock. If you have questions about the availability of a back ordered item, simply call us at 415-348-0084 or email us at logistics@downetc.com and we would be pleased to offer any assistance.