Sea Fox 257 T-Top Cover Specifications
- Boat LOA: 25'7"
- Beam: 8'6"
- Dry Weight: 4,000 lbs
- Max HP: 400
- Deadrise: 20°
- Draft: 16"
- Fuel Capacity: 150 gal
- Persons Capacity: 10
- Cover Fabric: 9oz Marine-Grade Solution-Dyed
- Cover Type: T-Top Boat Cover
Cover Features
- Fabric Options: 9oz solution-dyed marine fabric or premium Sunbrella acrylic
- Coverage Type: T-Top cover wraps hull below hardtop; hardtop remains exposed
- Construction: Reinforced stitching, hem cord at rubrail, adjustable tie-down straps
- Durability: Solution-dyed fabric (5–7 years); Sunbrella acrylic (8–10 years)
- Fit: Custom-fitted to 25'7" Sea Fox 257 specifications
- Protection: UV-resistant, water-repellent, mildew-resistant, breathable
Additional information
Choose Your Cover Fabric
7 oz. Polyester — Our entry-level marine cover fabric, woven from 100% polyester fiber at a 7 oz. per linear yard weight. This lighter option keeps the cover manageable for solo handling while still delivering reliable protection against sun, rain, and debris. Backed by a 3-year fabric warranty. Ships in Black.
9 oz. Polyester — Step up to our heavy-duty polyester, engineered at 9 oz. per linear yard for boats that face tougher conditions or extended outdoor storage. The denser weave adds an extra layer of defense against abrasion and weather without adding unnecessary bulk. Protected by a 5-year fabric warranty. Ships in Navy or Black.
Sunbrella® — For boaters who want the best, our Sunbrella covers use 100% solution-dyed acrylic — the same fabric trusted by marine professionals worldwide. Naturally resistant to fading, mold, and water damage, Sunbrella holds its color and integrity season after season. Covered by a 6-year fabric warranty. Ships in Black, Smoke, or Marine Blue.
Both polyester options feature solution-dyed construction, where pigment is infused into each fiber during production rather than applied to the surface afterward. This process locks color deep into the material, preventing any dye transfer to your boat’s gel coat or finish. The result is a cover that stays vibrant without bleeding or rubbing off. Our polyester is also designed to breathe — it allows moisture trapped underneath to vent out naturally, reducing the risk of mildew and keeping your boat dry. The fabric holds its form without sagging or stretching over time, stays lightweight enough for one person to handle, and stands up to prolonged UV exposure and harsh marine weather.
*The warranty periods above are provided by the fabric manufacturer and cover the material itself. For details on what’s included in the warranty for your completed cover, please see our warranty page.
7 oz. Polyester — Our entry-level marine cover fabric, woven from 100% polyester fiber at a 7 oz. per linear yard weight. This lighter option keeps the cover manageable for solo handling while still delivering reliable protection against sun, rain, and debris. Backed by a 3-year fabric warranty. Ships in Black.
9 oz. Polyester — Step up to our heavy-duty polyester, engineered at 9 oz. per linear yard for boats that face tougher conditions or extended outdoor storage. The denser weave adds an extra layer of defense against abrasion and weather without adding unnecessary bulk. Protected by a 5-year fabric warranty. Ships in Navy or Black.
Sunbrella® — For boaters who want the best, our Sunbrella covers use 100% solution-dyed acrylic — the same fabric trusted by marine professionals worldwide. Naturally resistant to fading, mold, and water damage, Sunbrella holds its color and integrity season after season. Covered by a 6-year fabric warranty. Ships in Black, Smoke, or Marine Blue.
Both polyester options feature solution-dyed construction, where pigment is infused into each fiber during production rather than applied to the surface afterward. This process locks color deep into the material, preventing any dye transfer to your boat’s gel coat or finish. The result is a cover that stays vibrant without bleeding or rubbing off. Our polyester is also designed to breathe — it allows moisture trapped underneath to vent out naturally, reducing the risk of mildew and keeping your boat dry. The fabric holds its form without sagging or stretching over time, stays lightweight enough for one person to handle, and stands up to prolonged UV exposure and harsh marine weather.
*The warranty periods above are provided by the fabric manufacturer and cover the material itself. For details on what’s included in the warranty for your completed cover, please see our warranty page.
| Weight | 35 lbs |
|---|
Install
Please watch the video below for installation instructions!
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Frequently Asked Questions
We offer three fabric tiers: our standard 9oz marine-grade solution-dyed polyester, a lighter 7oz option, and a premium Sunbrella acrylic upgrade. All three resist UV fading, mildew, and saltwater damage. Select your preferred fabric at checkout.
Yes. Our cover is pattern-cut specifically for the Sea Fox 257 T-Top configuration, with reinforced cutouts that wrap snugly around the T-Top supports, rod holders, and grab rails without sagging or bunching.
Installation takes under five minutes. Drape the cover over the bow, pull it aft past the T-Top frame, secure the adjustable straps beneath the gunwales, and tighten the quick-release buckles. The full elastic hem keeps everything sealed tight.
Absolutely. The reinforced stitching, heavy-duty adjustable straps, and elastic hem system are designed to stay locked down during highway-speed trailering on a tandem-axle trailer without flapping, shifting, or loosening.
The deep 20-degree deadrise creates a pronounced V-shaped hull that differs significantly from flatter inshore boats. Our cover is patterned specifically for this deep-V geometry, ensuring smooth draping without bunching along the sharper hull angles.
Every Perfect Fit boat cover includes a multi-year manufacturer warranty covering fabric defects, stitching failure, and premature UV degradation under normal use conditions.
Yes. The tight custom fit creates a complete barrier over your console, fishfinder screens, VHF radio, radar dome mount, and all electronics, blocking UV rays, salt spray, bird droppings, and airborne debris.
Our cover fits standard production Sea Fox 257 models with factory T-Top configurations. If your boat has significant aftermarket modifications, contact us before ordering to confirm fitment.
Our 9oz fabric features a durable water repellent (DWR) finish that causes rain to bead and roll off. The fabric is breathable to prevent trapped moisture and mildew growth underneath, making it water-resistant rather than fully waterproof.
Rinse the cover with fresh water after each use in saltwater. For deeper cleaning, use a mild soap solution and a soft brush. Allow the cover to air dry completely before storage. Avoid harsh chemicals or machine washing.
Sea Fox 257 T-Top Boat Cover — Premium Custom-Fit Protection
The Sea Fox 257 is a dedicated offshore center console that pushes past the 25-foot mark with the deep-V hull, power, and fuel range to handle serious bluewater fishing. At 25 feet 7 inches with an 8’6″ beam, 400-horsepower rating, 20-degree deadrise, and a 150-gallon fuel tank, the 257 is built for anglers who want to run farther, fish harder, and handle rough seas with confidence. The deep-V hull cuts through offshore chop while the generous fuel capacity provides the range to reach distant structure and ledges. Our Sea Fox 257 T-Top boat cover is precision-cut to the exact dimensions of this hull, wrapping the console, gunwales, and all deck hardware in marine-grade 9oz solution-dyed polyester. Browse the full Sea Fox boat cover collection for custom-fit covers across every Sea Fox model.
Deep-V Hull, Precision Cover Fit
The 257’s pronounced 20-degree deadrise creates a hull profile that’s significantly different from flatter inshore boats — the deeper V-shape affects how a cover must drape across the hull sides and transom. Our cover is patterned specifically for this deep-V geometry, with reinforced cutouts that wrap around the T-Top legs without gaps, a tailored drape that follows the console profile, and a full elastic hem cord that cinches tight against the rubrail. One person can install the cover in under five minutes using the adjustable strap-and-buckle system. For the flagship Commander variant at this size class, see our Sea Fox 266 Commander T-Top cover for the premium offshore platform.
Bluewater-Grade Fabric Protection
With 150 gallons of fuel and a 400-horsepower rating, the 257 is built for extended offshore missions where UV intensity, salt concentration, and weather exposure are at their absolute peak. Our 9oz solution-dyed polyester is engineered for these extreme conditions — every fiber is saturated with color before weaving, so UV resistance goes all the way through. The breathable weave prevents trapped condensation while the DWR finish repels rain, salt spray, and engine exhaust residue. Whether your 257 stays on a dock lift between offshore trips or rides home on a heavy-duty tandem-axle trailer, this cover delivers lasting bluewater protection. Need a center console cover? Check our Sea Fox 226 Traveler center console cover for full-hull CC protection on the Traveler platform.
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