Forgotten soft drink - Wisp, nothing on net.

[wispguy]

Came in a pouch like a Capri Sun. Would have been late 80s /Early 90s. Used to drink it quite often, this was in Merseyside, not sure if it was sold in the whole UK or just around there. Don't know if it was a UK brand or imported. Think it was a cheaper, lower quailty product than Capri Sun. Can't find *anything* at all through Google. Nobody else I know remembers at all. Not in contact with the two friends I remember drinking them with.

Anybody else remember, or am I going insane?