Flicker Marine Mainsail Boom Cover – Waterproof Polyester

Cover your mainsail between sailing trips. The Flicker Marine Classic Mainsail Boom Cover helps shield your stowed sail from rain, sunlight and dust. Its waterproof, UV-resistant polyester fabric fits over a lowered mainsail gathered along the boom.

4 colors · 10 sizes · Strap-and-buckle fastenings
Choose Blue, Green, Orange or Red to suit your sailboat.

Protection for Your Stowed Mainsail

• Waterproof polyester fabric: Helps shield the covered sail from rain and splashes.
• UV-resistant material: Helps reduce direct sunlight exposure while your mainsail is covered.
• Shaped mast end: Accommodates the taller sail bundle near the mast.
• Straps and buckles: Fasten the cover around your stowed sail and boom.

How to Choose Your Size

Lower and secure your mainsail on the boom as it will be stored. Measure the sail bundle and compare it with the cover dimensions for your chosen model:

• A — Mast-end height
• B — Cover length
• C — Mast-end opening circumference
• D — Rear opening circumference

Do not select by length alone. The chart gives the measurements of the cover itself. Allow room for the sail bundle and for fastening the cover. Match your selected model code to the corresponding row in the chart.

For C and D, the cover openings are measured flat and doubled to give the circumference. Measurements are shown in centimeters and inches.

What's Included

One mainsail boom cover in your selected color and size. Photos showing several colors illustrate the available options. Boat, sail, mast and boom are not included.

Frequently Asked Questions

Will a cover with the same length as my boom fit?

Length alone does not establish fit. Check A, B, C and D against your stowed sail and boom arrangement, allowing room to close and fasten the cover.

Is this cover for a lowered mainsail?

Yes. It is designed to cover a lowered mainsail gathered along the boom between uses.

Does one order include all four colors?

Each purchase includes one cover. Select your preferred color and size before adding it to your cart.