In stock means the item is available and ready to ship. To purchase RTS items, you MUST not add any preorder fabric to your order. If no preorder fabric is added, your RTS order will ship in 5-10 business days. If you add preorder fabric, your order will ship when the preorder fabric has arrived by the preorder stated turnaround time (TAT). Unfortunately, we are unable to split or break orders if RTS is ordered with preorder.