I have the newer pcs buffalo style "softie".
It's windproof, i'd say slightly water resistant (it has them waterproof zippers), dries extremely fast, has excellent ventilation options (neck zip, armpit zips, zips down the side of the torso)
it's very thin and lightweight and packs down into its own kangaroo style pocket (makes a nice pillow) but its also quite warm probably due to the polar fleece lining and windproof shell and has big pockets.
But the fleece yanks on anything you wear underneath it (such as the pcs fleece norgie, brilliant bit of kit) when you go to remove the jacket which can be annoying and its so thin i dont know how it takes as much abuse as it does.
And although its similar to a buffalo top, i dont believe it works quite the same but its very comfortable to wear it as any kind of layer (base, mid, outer) and its very light.
Its slightly different to the other softie jacket in that it's designed to be worn as a mid layer under the windproof smock.
I quite like it, in fact i like it very much but the fleece liner can be a pain in the bottom.
Edit: just added a photo. This is the buffalo style top replacing the old reversible softie
Theres also a zip up pcs thermal softie jacket similar to the older one but ive never used one.
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