WOW! You guys have blown us away! Our XPO Trainers are selling FASTER THAN EVER, and we just can't keep our inventory in stock. We know this is a good problem to have, but we do apologize to our awesome customers for the delay in production. Our next round of XPO Trainers should be ready for shipment around October. If you are wanting an XPO Trainer in the near future, please email us at email@example.com to get on the waiting list!