A wind scoop funnels even a light breeze down through a hatch and into the cabin, and is one of the most effective ways to stay cool at anchor without running AC. The Breeze Booster is a freestanding wind scoop for boat hatches where no halyard is available — no rigging required, no permanent installation, and it works on any type of boat. We used one on our Gemini 105 catamaran for five years alongside our Breeze Bandit four-way scoop, and it earned its place.
When the Breeze Booster Makes Sense
It’s the right tool in three situations:
- No halyards — if your boat has no halyards at all (trawlers and other powerboats), you need a wind scoop that stands on its own
- Not enough halyards — catamarans often have more hatches than available halyards, and you want airflow in all of them
- Wrong position — you have halyards, but none is positioned well for the specific hatch you want to ventilate
If you do have a halyard positioned correctly for a hatch, a four-way omnidirectional scoop will move more air. But when you don’t, the Breeze Booster is a real solution rather than just leaving that hatch bare.
How It Works

The Breeze Booster uses fiberglass rods and a tensioning cord to hold its shape. Nothing gets permanently installed on the boat. It sets up in a few minutes once you’ve done it a couple of times — there’s a slight learning curve at first, but their instructions are genuinely good and it comes together quickly.
It collapses to roughly the size of a large umbrella for storage.
Unlike an omnidirectional four-way scoop, it catches wind from one direction at a time. Technically, you can reposition it and bring it in ahead of a squall from inside the cabin, but in practice, we found it easier to do it from outside. Either way, it’s quick.
One thing to know: it cannot be used with an existing hatch screen. They sell an optional no-see-um screen that fits over the whole scoop, which works well when the bugs are bad. Any screen will cut airflow somewhat, but it beats closing the hatch entirely.
How It Held Up
We used ours for about 10 months a year in the Florida Keys and the Bahamas. After five years, when we sold the boat, it was showing some wear but still worked. In a climate that’s hard on fabric and hardware, that’s saying something.
Buying the Breeze Booster
The Breeze Booster comes in small, medium, and large sizes to fit most hatches and in several colors. Check their sizing guide against your hatch dimensions before ordering.
The Breeze Booster isn’t sold in stores or on Amazon. Two sources:
- BreezeBooster.com — order by phone, direct from the manufacturer
- Defender Marine — online ordering
Carolyn Shearlock has lived aboard full-time for 17 years, splitting her time between a Tayana 37 monohull and a Gemini 105 catamaran. She’s cruised over 14,000 miles, from Pacific Mexico and Central America to Florida and the Bahamas, gaining firsthand experience with the joys and challenges of life on the water.
Through The Boat Galley, Carolyn has helped thousands of people explore, prepare for, and enjoy life afloat. She shares her expertise as an instructor at Cruisers University, in leading boating publications, and through her bestselling book, The Boat Galley Cookbook. She is passionate about helping others embark on their liveaboard journey—making life on the water simpler, safer, and more enjoyable.


Roxanne Cooper says
We bought a copule of these for our 32′ Catamaran several weeks ago. We needed more air flow down below from the port windows so we bought the small size. They work great! Especially in the head where it gets really stuffy.
Carolyn Shearlock says
Glad to hear it! -Carolyn
Rhonda Rains Leith on Facebook says
Love these! We have 2 and they really help on those hot days!
Patty Alderson on Facebook says
We have 3 on our boat and when in the Caribbean they keep below decks very cool!
Susan Schreyer Leaf on Facebook says
We have one that has seen a lot of use at anchor. Keeps the entire inside cool.
Bejay Redford Linde Grackin says
Have them and love them. We added a line to attach them to the boat because when a cool front caused the boat to swing, it flexed and blew off the boat.
Sami Bolton says
We have the porthole version for our 50ft Marine Trader trawler…….LOVE them. Be sure to tie each one to something inside the boat as a tether in case you forget they are there and leave the slip without pulling them in, because they do stick out. Obviously they are designed for being at anchor but do work anywhere there is a need of more breeze. We got the ones with screens in them. Also, they are made in Muskogee Oklahoma so ask for the Okie discount!
Laurie says
Hi Carolyn, That is a very cool product! I am enjoying your site so much. We purchased our first sailboat last September and are in love. This is such a fun adventure. We are up near the San Juan Islands.
We do have a halyard. Do you know of some plans or instructions to make our own wind scoop?
Thank you
Terri Farnstrom says
We have three on our boat. One of the best things we’ve ever bought.
Beth Hipp Tyler says
We have two Breeze Boosters and love them!
Margaret Stewart says
And it looks like you can use screens to keep the bugs out when the breeze dies, too!
Jan Alexander says
We love ours, but after a couple years in the tropics, it has completely rotted in the sun 🙁 We will look at reconstructing the fabric part, but that will require some head scratching, as it’s assembled with rivets. Any ideas?
The Boat Galley says
You got a lot of life out of it, I’d say! We get about a year out of most wind scoops with daily use in the tropics. Since we don’t have one, I’m not sure exactly how to go about re-making it, but could you use a rivet gun or the Sailrite rivets (borrow either from another boat . . . )? Also, using the 303 Aerospace Protectant will help the fabric last longer.
Cheryl Bular says
Weve had 2 in the past 20 yrs. I like that it’s easy to get down when a bad blow pops up.
LaDonna Thomas says
The “Port Booster” from the same company is AWESOME!! I think it brings in more air that the original hatch booster.
Donna says
Just received our Breeze Booster…used it this weekend while anchored in the West River south of Annapolis in the Chesapeake. It was easy to set up and worked just as I had hoped. Thanks for the recommendation.
Perfect Fit
47′ Sabreline Aft Cabin Trawler
Donna BLASZCAK says
Didn’t want to give up my hatch screen, so I got rid of the stick they give you, added “cup hooks” to the inside of the hatch frame (one in each corner), and added loops to the ends of the support strings. This way I can face the scoop in any direction – for those times when currents beat-out the wind, and we are sitting sideways to the wind. Love the Breeze Booster!
Carolyn Shearlock says
Great ideas!