@Michael62 Thanks for reaching out!
The process of purchasing an item we don't typically carry from a vendor partner of ours is called a 'special order' and can only be place at your local REI store. It does look like the pad you are asking about is part of our special order program with NEMO. Please bear in mind, however, that special orders are handled by the vendor and therefor availability, shipping, processing, and timelines can be variable.
Hopefully this helps, thanks!