Rowan, if it is the same thing I saw, what I didnt like is that if felt sort of "grabby", know what I mean. I bought a brooks rain cover and while it is a bit stiff, i do like its feel, no grabbiness. Havent ridden on it all day though, so perhaps the folds might get annoying.
Yes, probably is the same. I haven't tested it yet in wet conditions, but maybe the additional of water will slightly lubricate the surface to eliminate the grabbiness.