Megabyte MK1 Mainsails

Megabyte MK1 Mainsails

Looking for a replacement Megabyte MK1 mainsail? Mad Sails continues production of this discontinued sail, giving Megabyte sailors a reliable source for high-quality replacements.

When the original manufacturer stopped making the MK1 sail, we stepped in to keep this class on the water. We hand-build every Megabyte MK1 mainsail in our loft using premium materials and the same attention to detail we bring to all of our racing sails—delivering durability, performance, and a precise fit.

Megabyte MK1 Mainsail Options

Choose the sail that best fits your sailing style:

• Dimension-Polyant PX Black Line Laminated Mainsail – Lightweight, performance-oriented laminate with a foot window for visibility
• Woven Polyester Mainsail – Durable 5 oz Dimension Polyant white sailcloth with a traditional feel and long-lasting construction (no window)

What’s Included with Each Megabyte MK1 Sail

Every sail comes sail-ready with:

• RBS tapered battens
• Foot window (included on laminate sail)
• Tell-tales
• Sail numbers and Megabyte class insignia
• Sail tie
• Storage bag
  • Roll bag (laminate sail)
  • Envelope bag (woven polyester sail)