Ultralight padding/insulation options for 3/4 length UQs ?

[burtonator]

So I used to use a GG Sitlight pad:

http://gossamergear.com/sitlight-sit-pad-group.html

But I'm now using a Zpacks Arc Blast for my pack and further, I think this pad is NOT ideal insulation for me:

1. would be nice it it was wider.
2. would be nice if it was a bit more flexible.
3. better insulation would be nice.

So.... something with a high R-value to weight index would be nice.

Does anyone have any recommendations?

[SwinginIt]

Reflectix.

[Mort]

A cheap (around $6) simple car window sun shield from WW might be worth a look. Works great in the summer especially.

[Boulderman]

I use a GG 1/8" thinlight pad, works great. Wide, layers can be doubled/tripled if you don't cut it, potential go-to-ground option, etc. Also have a Lawson 1/8" pad which is a little wider/longer, could use for the same purpose.