We strongly advise against ordering any pre-order/backorder items alongside in stock merch you'd like to have shipped via 2 Day Air. As our system does not process orders until all items are available, your entire order will not ship until the pre-order/backorder items are available. At that time, your entire order will ship together via 2 Day Air. If that's what you want, fantastic! But we recommend planning your orders accordingly by placing a second order for the pre-order items via normal mail and the remaining items via 2 Day Air.