Not ultralight at 27oz.
However it has a R value of 5.9 and doesn't have to be inflated.
Width (head and foot ends) - 20"
Width (torso)- 25.5"
Length - 73.5
Thickness - 3"
$100 Shipped OBO (Down from $125)
Willing to trade for an Exped UL 7 Mat or UL Downmat. Possibly willing to trade for other items.