Sails for wind-driven vessels

摘要

The invention relates to the sails for wind-driven vessels, in particular surfboards, a second sail being fastened along the luff or the mast pocket of a first sail from the sail neck or the foot up to below the sail head. The first sail is designed as a normal- or light-weather sail and the second sail is designed as a storm, severe-weather or emergency sail of a smaller size. The second sail is stitched to the first along its luff or is connected to the first by means of a zip fastener.