Apparently the new Cumulus design has "flaps" over the zipper and the hole at the bottom when tightened up.
The As Tucas looks interesting as well. Weight and price seems alright but I can't find any numbers on volume when packed up. Are they going to be more bulky because they are synthetic?
Actually yeah, buy this instead. Same price, much better made, can do small custom things.
https://www.astucas.com/en/products/sestrals-quilt/