Try this roll up your UK poncho, as small as it will go.
then with the US version.
you will have found that:
the UK version sounds like a crisp packet, the US is quiet in comparison.
the UK version does not roll up as small.
the UK version is more ridgid and not as comfy to wear as the US version.
i once stuffed a US poncho into a US ammo pouch 7" x 2.5" x 3" you cannot do this with the UK version!
ontop of this all the US version has a camo pattern, you can get the same poncho in black or green also!
UK version is....green!
I am all in favour of the US version, 100%
materials, design, weight, compactness, duriability, and comfort.
the UK version is a tough heavier weight version, cheeply made and not used much as a waterproof, always as a shelter top or groundsheet.
in my opinion, uS army version is far better!