A 4 ounce Cuben Fiber poncho tarp…….

Looks like it could be the lightest rain gear set up out there, but I'm not hard core enough to use it as a shelter.

Still, at that weight, you could bring a seperate shelter and use the poncho as a beak or extra coverage…

I wish the site had a picture of it set up with a person inside.
It looks tiny being worn.
I don't think I'm that hardcore either, (yet).
If I go truly SUL, I like to have some assurance by taking an Event Jacket.
I'm just waiting for a lighter Event Jacket. I don't understand that they can make a wind jacket weigh 2.5 ounces but can't do a sub 7 ounce Event jacket with 2.0 ounce fabric the same way.
Then I don't have to worry about needing to use any synthetic gear as well.