Key takeaways
- A boat cover is a fitment problem first and a fabric problem second. Cover makers sort their products by hull length.
What's inside
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A boat cover is a fitment problem first and a fabric problem second. Cover makers sort their products by hull length, and a cover that is two feet too short leaves the bow or stern exposed, while one that is far too long pools water and flaps in the wind. This guide is built around trailerable covers for V-hull, bass, fish-and-ski and runabout boats, so the first job is to measure your hull and pick the length bracket that contains it.
It is written for owners who park a boat on a trailer in a driveway, a storage lot or beside the lake house, and who want something that sheds rain, resists sun, and packs into a bag when the 2026 season ends. The ten covers below span 16 to 23 feet and several fabric weights. Use the table to narrow by length, then read the individual notes to decide between similar options, since several brands sell nearly identical covers one size apart.
Quick Picks
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| Product | Best for | Key spec from the title |
|---|---|---|
| iCOVER 17-19 ft | Mid-size V-hull and bass boats | Waterproof tarp cover with storage bag |
| HAHASOLE 20-22 ft | Larger trailerable boats | 1200D marine grade Oxford fabric |
| HAHASOLE 17-19 ft | Mid-size boats needing UV protection | 1200D, double stitching |
| iCOVER 16-18.5 ft | Smaller fishing boats and runabouts | 16 to 18.5 ft fit range |
| YimSting 16-18.5 ft | 16 to 18 ft bass boats | 1200D, air vents |
| YimSting 17-19 ft | 17 to 19 ft bass boats | 1200D, air vents, black |
| NEVERLAND 20-22 ft | Wide-beam bass boats | 102 inch beam width |
| iCOVER 20-23 ft | The longest hulls in this group | 20 to 23 ft fit range |
| Kipiea 1300D | Owners who want a heavier fabric | 1300D, double PU waterproofing |
| Mancro 1200D 17-19 ft | Outboard boats | 1200D marine grade, UV resistant |
How to Choose
Match the length bracket and the beam
Measure the hull from bow tip to transom, not the trailer. Most covers here are sold in overlapping brackets such as 16 to 18.5 feet and 17 to 19 feet. If your boat sits in the overlap, the longer bracket is usually safer for a snug fit over the motor and bow rail. Beam matters too: the NEVERLAND listing spells out a 102 inch beam width, which is the kind of number to compare against your own boat before ordering.
Read the denier number as a rough weight guide
The titles list 1200D and 1300D fabrics. Denier describes thread thickness, so a higher figure points toward a heavier cloth, but coating and stitching decide whether it keeps water out. Look for a stated waterproof coating, such as the double PU layer on the Kipiea, plus UV and tear resistance. A cover with no fabric details in the title is a gamble for a boat that sits outdoors all year.
Look for vents, stitching and tie-downs
Trapped moisture breeds mildew, so air vents like those listed on the YimSting covers help the hull breathe under a closed cover. Double stitching at the seams, as listed on the HAHASOLE, matters because seams are where water and wind find a way in. Straps and elastic hems keep the cover from lifting at highway speed, so check the full listing for them before buying.
Know where budget covers cut corners
Thin fabric, single seams and weak straps are the usual compromises. Budget covers also tend to fit loosely on boats with tall windshields or bow-mounted trolling motors, which creates pooling pockets. A support pole or a few pool noodles under the center can fix that, and is worth planning for regardless of which cover you buy.
The 10 Best Options
iCOVER Trailerable Boat Cover 17-19 ft
This is a straightforward cover for owners of V-hull, fish-and-ski, pro-style, runabout and bass boats in the 17 to 19 foot range. The title highlights a heavy duty waterproof tarp construction and a storage bag, which suits anyone who removes the cover for weekends on the water.
- Strength: broad list of compatible hull styles in the title
- Strength: storage bag included for off-season packing
- Trade-off: the title gives no fabric weight, so durability is harder to compare
Skip it if you want a stated denier rating or listed vents before spending anything.
HAHASOLE 20-22 ft Boat Cover
Aimed at larger trailerable boats, this one pairs a 20 to 22 foot fit with 1200D marine grade Oxford fabric. The title also lists UV and tear resistance and double stitching, a sensible trio for a boat parked in open sun.
- Strength: 1200D Oxford fabric with a marine grade label
- Strength: double stitching listed for seam strength
- Trade-off: the narrow bracket leaves little room if your boat is near 19 or 23 feet
Skip it if your hull is shorter than 20 feet, since an oversized cover will bunch and collect water.
HAHASOLE 17-19 ft Boat Cover
The smaller sibling of the 20 to 22 foot model, it carries the same 1200D marine grade Oxford fabric, UV and tear resistance and double stitching. It targets owners of 17 to 19 foot bass and fishing boats who want a heavier cloth without moving to a premium tier.
- Strength: 1200D fabric in a common mid-size bracket
- Strength: UV and tear resistance named in the title
- Trade-off: no air vents are named in the title
Skip it if you store the boat in a humid climate and want ventilation called out clearly.
iCOVER Trailerable Boat Cover 16-18.5 ft
This is the iCOVER for the smaller end of the range, covering 16 to 18.5 feet. It lists the same hull compatibility as its larger siblings, including V-hull, fish-and-ski, pro-style, runabout and bass boats, along with a storage bag.
- Strength: a shorter bracket suits compact fishing boats
- Strength: storage bag included
- Trade-off: no denier or stitching details appear in the title
Skip it if your boat measures right at 18.5 feet or longer, because the fit will be tight at the ends.
YimSting Boat Cover 16-18.5 ft
Built for 16, 17 and 18 foot bass boats, this black cover lists 1200D waterproof fabric, a V-hull fit, heavy duty construction, UV and tear resistance and air vents. The vents are the standout feature for owners who worry about moisture under the cover.
- Strength: air vents named in the title
- Strength: 1200D waterproof fabric with UV resistance
- Trade-off: the listed fit is tied to V-hull bass boats, so other hull shapes may fit less well
Skip it if your boat is a pontoon or flat-bottom design.
YimSting Boat Covers 17-19 ft
This is the next size up, listed for 17, 18 and 19 foot bass boats. It repeats the 1200D waterproof construction, black finish, UV and tear resistance and air vents, so the decision between the two YimSting models comes down to hull length alone.
- Strength: vents and 1200D fabric in the 17 to 19 ft bracket
- Strength: heavy duty build with tear resistance
- Trade-off: it overlaps heavily with other 17 to 19 ft covers, so it needs a clear reason to pick it over them
Skip it if you want a light-colored cover, since this one is black.
NEVERLAND Bass Boat Cover 20-22 ft
The only cover here that states a beam measurement, 102 inches, alongside a 20 to 22 foot length. That detail helps owners of wider bass boats avoid guesswork. The title also lists heavy duty construction and UV and tear resistance.
- Strength: length and beam both stated
- Strength: heavy duty, UV and tear-resistant claims in the title
- Trade-off: no fabric denier appears in the title
Skip it if your boat is narrower than a typical bass boat or shorter than 20 feet.
iCOVER Trailerable Boat Cover 20-23 ft
Reaching up to 23 feet, this is the longest-fitting cover in the group and the one to consider for a big fish-and-ski or pro-style boat. It includes a storage bag and lists the same V-hull and runabout compatibility as the other iCOVER sizes.
- Strength: the widest length range at the upper end
- Strength: storage bag included
- Trade-off: no stitching or fabric weight is listed in the title
Skip it if your boat is under 20 feet, because the excess fabric will flap and pool.
Kipiea 1300D Boat Cover
The heaviest fabric number in this roundup belongs to the Kipiea at 1300D, with a double PU waterproof coating. It also mentions a motor cover and fits V-hull, fish-and-ski, pro-style, fishing and bass boats.
- Strength: 1300D fabric with double PU waterproofing
- Strength: motor cover mentioned in the title
- Trade-off: the visible title gives no length bracket, so confirm the size on the full listing
Skip it if you cannot verify the length range for your hull before ordering.
Mancro 1200D Boat Cover 17-19 ft
This one targets owners of outboard boats in the 17 to 19 foot range, with 1200D marine grade fabric and UV resistance. The title lists bass boat compatibility and appears to extend to bay-style hulls.
- Strength: marine grade 1200D fabric
- Strength: UV resistant and suited to outboard setups
- Trade-off: the title does not mention a storage bag or vents
Skip it if you want accessories bundled with the cover.
Which One Fits Your Situation
You own a 21-foot bass boat with a wide beam
Start with the NEVERLAND 20-22 ft, since its 102 inch beam figure lets you compare against your own measurements. The HAHASOLE 20-22 ft is the alternative if you care more about its listed double stitching.
You store the boat outdoors through humid summers
Pick the YimSting 17-19 ft, or the 16-18.5 ft version for a shorter hull. The listed air vents are the closest thing in this group to a ventilation promise.
You want the heaviest fabric listed
The Kipiea 1300D has the highest denier figure and a double PU coating. Confirm the length range on the full listing first.
You haul the boat often and need to pack the cover away
The iCOVER range includes a storage bag in every size, so pick the iCOVER 17-19 ft or its neighbors based on hull length.
Common Mistakes
- Measuring the trailer instead of the hull, which leads to a cover that is too long or too short.
- Ordering at the edge of a size bracket and ending up with a tight fit over the motor.
- Ignoring ventilation, then finding mildew after a wet month under a sealed cover.
- Skipping a center support, which lets rain pool in sags and stretch the fabric.
- Assuming a bigger denier number automatically means a better cover, without checking coating and seams.
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Frequently Asked Questions
What does 1200D mean on a boat cover?
It refers to the thickness of the polyester threads. Higher numbers generally point to heavier cloth, but the waterproof coating and stitching quality matter as much.
Can I use a cover sized for a longer boat?
You can, but excess fabric tends to flap and gather water. A cover matched to your length bracket sits more securely and wears more slowly.
Do I need a support pole under the cover?
Many owners add one or use foam noodles to build a slope so rain runs off. It is cheap insurance for any flat-topped hull, whichever cover you choose.
Are these covers meant for towing?
The listings describe trailerable covers, so they are intended for use on a trailer. Always check the full product page for the tie-down and strap details before highway travel.
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