YW Dayboat M-4 Mainsail

The M-4 Mainsail is based on our very successful Enterprise and Albacore sail designs.  The sail uses a bi-radial layout which helps keep the sail smooth and fair in the high load corners while allowing precise shaping through the middle of the sail.

Standard Features

  • Class insignia
  • Sail numbers
  • Epoxy battens
  • Leech tell tales
  • Long roll bag
  • Collision window