The design was originally marketed by the manufacturer as the Folie Douce (English: Tender Madness), but in 1975, halfway through the ten-year production run, the name was changed to Brin de Folie (English: Touch of Madness).
[1][2][3][4][14][15][16] The Brin de Folie is a recreational keelboat, built predominantly of fiberglass, with wood trim.
The hull has a raked stem; a raised counter, reverse transom; a skeg-mounted rudder controlled by a tiller and a fixed fin keel.
The fresh water tank has a capacity of 24 U.S. gallons (91 L; 20 imp gal).
[1][2][3][4][5][6] For sailing downwind the design may be equipped with a symmetrical spinnaker of 689 sq ft (64.0 m2).