I think it just depends on the airline. I think golf clubs get some sort of exception for weight or cost on many airlines, so that's why you see products labeled as such.
Alaska Airlines let's you go over 50lbs for sports equipment. They also don't charge you if you want to check a box of wine. And they fly to fun places like Maui, Baja, and Portland (the Gorge).
Am typing this flying to Maui right now. Alaska didn't even bother to weigh my bag. Our other large checked bag was over by 3lbs and the lady just said, "I bet it's mostly baby stuff." We are traveling w a newborn, and she just passed it through without charging us. If you fly 20k miles with them you get to MVP status which gives you two free checked bags per person.
this time the main bag is packed with 4.8 wing board, 4.7 prone board, long mast, five front wings and my 3.0. Smaller wheelie has all the stabs, short mast, pump, my 3.5, fuselages, waterwear, etc.. Wanted the keep the big bag relatively manageable for the baggage handlers and for fitting in the Uber and rental car.
I have a Mystic Daypack 5.6 for car transport and a Mystic Star Boardbag 5.6 for flying. I am very satisfied with both, reasonable price and well made.
In my Mystic Star Boardbag I can easily pack one board (F-One Rocket Wing 5.4 75l), 3 Ensis Wings and all the other stuff: Mast, Fuselage, Wings, Wetsuits,.
For additional protection I made an inner bag using ordinary air bubble foil: 2 or 3 layers on each side, welded with an electric iron. Attention: Put a baking paper between iron and air bubble foil, otherwise you will get problems with your wife! Aprox. 500g.
I just got the 5'4" ION Tec Gearbag and somehow it is waaay bigger than I expected. I guess I hadn't carefully looked at the width and height dimensions. I tossed in my 5'0" Fanatic, three wings, two foils, and my wetsuit and it still looks basically empty. The ends of the bag aren't tapered at all which makes it extra bulky. Also, there are no handles on either side (only the top and the shoulder strap) which seems like a glaring omission. Wouldn't recommend.
This is a great bag - just got it. There's a video review from these guys you can track down.
www.mackiteboarding.com/mystic-star-wingfoil-travel-boardbag/
Just got a Kalama e3 wing board. The 4'8"x 26" size. Looking for a board bag that is travel suitable. Ideally with sleeves for foil masts/ wings as well. The perfect solution looks like the LF supply travel bag, just wouldn't fit this board?
Hi there,
Congratulations on your new Kalama e3 wing board! It sounds like an exciting addition to your gear. I understand the importance of finding the right board bag, especially for travel, and it's great that you're looking for one with sleeves for foil masts and wings.
Considering the size and specifications of your board (4'8"x 26"), you mentioned that the LF Supply travel bag wouldn't fit. For a suitable alternative, I recommend checking out Faroboard Bags. They offer a variety of surfboard bags, and you might find the perfect travel bag that accommodates your Kalama e3 wing board along with sleeves for your foil masts and wings.
You can explore their selection at Faroboard Bags. They specialize in high-quality bags designed to protect your equipment during travel, ensuring your gear arrives at your destination in top condition.
Feel free to browse their collection and find a bag that meets your specific needs. If you have any questions or need assistance, their customer service team is usually happy to help.
Wishing you fantastic adventures with your new wing board, and I hope you find the ideal board bag for your travels!
Best regards,
Aaron James
Anyone have a weight on a 5'1" or 5'6" Mystic Star Wingfoil Boardbag Wheeled

Hope it helps :)
5'1 WINGBOARD 230L 4.0kg
5'6 WINGBOARD 266L 4.4kg
6'1 WINGBOARD 305L 4.7kg