25 years ago I had "COSTA" 260 and 290 Radical boards from the COBRA factory (It was something to do with boards going to Japan where the Japs couldnt pronounce the "R's"-cobblers !! So they called them Costa)
Anyway, they had neoprene decks and adjustable footstraps with no screws, zips, bolts or velcro.
Anybody else remember them ?
Better still, can anybody guess how they worked ?? !!