Mainsail covers protect expensive sails from sun, wind, and rain, extending their life and maintaining performance. This guide highlights five high-quality options, covering a range of boom lengths and materials. Each product emphasizes UV resistance, waterproofing, and a secure fit to withstand harsh marine environments. The selections below are designed for American sailors seeking durability, ease of use, and reliable protection for their mainsails.
| Product | Boom Length | Fabric | UV/Water Protection | Notes |
|---|---|---|---|---|
| SavvyCraft Waterproof Mainsail Boom Cover, Navy (11′-12′) | 11′-12′ | 600D marine grade polyester, PU back | UV resistant, waterproof, reflective layer | Heavy-duty zipper with storm flap; secure bottom straps |
| Daspom 11-12FT Mainsail Boom Cover | 164″ x 48.8″ | 600D Oxford cloth with PU coating | Waterproof; windproof flap; UV protection | Double stitching; adjustable drawstring |
| 1200D Mainsail Boom Cover (7′-8′) | 7′-8′ | 1200D fabric, PU coating | UPF 50++; waterproof | Four-layer waterproof coating; soft cotton lining |
| SavvyCraft Waterproof Mainsail Boom Cover, Gray (13′-14′) | 13′-14′ | 600D marine grade polyester, PU back | UV resistant; reflective mast area | Storm flap with Velcro; secure bottom straps |
| SavvyCraft Waterproof Mainsail Boom Cover, Green (11′-12′) | 11′-12′ | 600D marine grade polyester, PU back | UV resistant; reflective mast area | Similar secure features and stitching as navy version |
SavvyCraft Waterproof Mainsail Boom Cover Navy 11′-12′
The SavvyCraft 11′-12′ Navy mainsail boom cover is built for durability in marine environments. It uses a solution-dyed, fade-resistant UV-resistant marine grade polyester with a PU-coated back, delivering waterproof yet breathable performance. A heavy-duty #10 zipper runs along the mast end, protected by a storm flap and a 2-inch Velcro closure to seal out water. Bottom-edge straps with buckles ensure a neat, snug fit, while a top drawstring provides additional load-bearing security. The cover features triple-layered hems and double stitching for reinforcement and long life, plus a silver UV-reflective layer near the mast to reduce heat buildup. UV-resistant polyester thread enhances overall durability.
Designed for easy maintenance and reliable performance, this cover protects sails from sun exposure and moisture while maintaining a clean appearance on deck. The combination of waterproof yet breathable fabric helps prevent moisture accumulation inside the cover, reducing mold risk and sail degradation. For boaters requiring a robust, long-lasting mainsail cover with straightforward installation, this option offers a strong balance of protection and practicality.
Daspom 11-12FT Mainsail Boom Cover
The 164″ by 48.8″ Daspom Mainsail Boom Cover is built from scratch-resistant, tear-resistant 600D Oxford cloth with a PU coating. The wide Velcro windproof flap protects the zipper from rain and wind while maintaining easy access. A bottom-edge adjustable webbing tie with an internal buckle and a top drawstring create a secure, weatherproof fit that stays in place in rough conditions. Double stitching strengthens seams to resist wear, even under repeated exposure to sun, spray, and temperature shifts. The result is a durable cover designed to protect a mainsail for years of use on a variety of vessels.
Boaters will appreciate the practical design elements, which aid in installation and removal, and the robust materials used to withstand UV exposure, moisture, and abrasion. The sleeve-like fit helps keep the cover aligned with the boom for a tidy appearance on deck while providing reliable protection from the elements.
1200D Mainsail Boom Cover (7′-8′)
The 7′-8′ 1200D Mainsail Boom Cover emphasizes heavy-duty protection with a four-layer waterproof PU coating and UPF 50++ sun protection. Its 1200D fabric delivers excellent tear resistance, while the moisture-wicking, breathable inner design helps guard against mold and mildew. A four-layer waterproof coating enhances water resistance, and the soft cotton lining cushions the sail and reduces friction at the mast area. Reinforced stitching adds long-term durability, making this cover suitable for demanding marine environments and frequent use. The secure side zipper and windproof Velcro strap system ensure a stable, snug fit in varying weather conditions.
For sailors prioritizing maximum waterproofing and UV defense, this option offers strong performance with an emphasis on protecting sails from sun damage and rain while minimizing wear over time.
SavvyCraft Gray Mainsail Boom Cover 13′-14′
This gray SavvyCraft mainsail boom cover spans 13′-14′ and uses the same heavy-duty 600D marine grade polyester with PU-coated backing found in other SavvyCraft models. It provides UV protection, a secure fit via a mast-end zipper and storm flap with Velcro closure, and bottom-edge straps with buckles for tidy alignment. The triple-layered hem and double stitching reinforce the fabric, while a silver reflective layer near the mast helps mitigate heat buildup. The design emphasizes long-term durability and weather resistance, making it suitable for larger boats that require dependable coverage for extended seasons.
SavvyCraft Green Mainsail Boom Cover 11′-12′
The 11′-12′ Green SavvyCraft cover mirrors the navy and gray variants in construction and features. It uses fade-resistant, UV-resistant marine-grade polyester with a PU-coated back for waterproof capability. A heavy-duty zipper along the mast end is protected by a storm flap and 2″ Velcro closure, while bottom-edge straps with built-in buckles deliver a secure, neat fit. A top drawstring and triple-layered hem with double stitching reinforce the cover against wear. The mast-area UV reflective layer minimizes heat-related stress, helping preserve sail fabric under sunlight exposure. This version offers the same reliable protection with a distinct color option for boat visibility and style.
Buying Guide: Key Purchase Considerations And Comparisons
- Fabric And Durability: 600D vs 1200D fabrics provide different levels of abrasion resistance and longevity. 1200D is tougher and better suited for harsh climates or boats with frequent use, while 600D options balance cost and protection for standard sailing seasons.
- UV Protection And Waterproofing: Look for UV-resistant fibers and coatings, plus waterproof, breathable membranes. Polyester with PU backing is a common choice that blocks UV rays and repels water while allowing moisture to escape.
- Fit And Installation: Most covers use a zipper along the mast with storm flaps and Velcro closures. Ensure bottom edge straps are adjustable and that overall length matches your boom to prevent flapping and water ingress.
- Seams And Reinforcement: Double stitching and reinforced hems reduce wear from sun, wind, and wave splash. A reflective mast-area layer can help manage heat absorption and fabric stress.
- Maintenance And Longevity: Breathable fabrics help prevent mildew, while smooth linings cushion sails during storage. Regular cleaning and drying before storage extend cover life.
- Color And Visibility: Color options can aid in deck visibility and weight distribution. Darker colors may retain more heat; lighter or reflective layers can help minimize heat buildup near the mast.
- Compatibility: Measure your boom length accurately and compare with specified dimensions. Some covers address a range of lengths (e.g., 11′-12′, 13′-14′), so confirm compatibility with your vessel.
In summary, the highlighted mainsail covers offer robust UV protection, waterproofing, and secure fittings across a range of boom lengths. When selecting a cover, prioritize fabric durability, secure closure systems, and fit accuracy to ensure lasting protection for your mainsail while sailing in varied North American conditions.