The Microsail is a Micro Class racing keelboat first built by Jeanneau in France for French Micro Cup racing. It was later built by a number of companies, including C.N. Loire up until 2000. After 2000 it was only available as a kit for amateur construction until Construction Navale Franck Roy commenced building the design again in 2007.
Designed by Gary Mull the fiberglass hull has a transom-hung rudder.
The boat has a draft of with the lifting keel down and with the keel retracted. The boat has a hull speed of .
It has a fractional sloop rig.