20" x 72" x 2.5" air-core mummy pad from Big Agnes.
I bought it in haste from another forum member.
I had just ordered a new bag that was 78" long, got confused about sizing. But the new bag requires the larger pad.
Wasn't thinking.

Came to me with the tag still on it.
I've taken the pad out and inflated it, but never actually used it.

$30 shipped