The bags are listed by their length, which makes it very simple. If you have a 6'4 board, you should look for at least one 6'4 bag. The width and thickness affect the style of the bag you'll need to buy. Always check the size of your nose and the shape of your surfboard bags, a little tight is better than loose.
The only problem I've had with board covers is when they get too hot and the wax melts and then creates a bond between the sock and the board. This is horrible and can be a real pain. If you are going to leave your board in the sun, which is definitely not recommended in any situation, it is best to use a board bag. Try to store the board in a dry, shady place that doesn't get too hot.
Now, when we've covered the types, let's look at the sizes. For a perfect fit, the bag has to be the right size. The board should slide easily but not float around the bag. A bag so tight that you can barely fit the board inside is too small.
The surfboard sock is the lightest option of all the board protection options available, but it also happens to be the least effective and weakest option you could choose. I think it's fun to design your own surfboard bag, and if you like the billboard, this is an amazing option. The following is an example of a cheap plastic bag for surfboards compared to the hemp pioneer Wave Tribe made to last longer than your surfboard. If you're planning a surf trip by car, train, boat or plane, a travel bag for wheeled surfboards is definitely a good investment.
All you can do is fly with airlines that don't charge for surfboards and protect your board when you travel and get the best surfboard bag possible. Some guys tell me that they are tired of paying for travel bags with surfboards, so they decided to rent a board once they arrived at their surf destination. Glass fins are making a comeback, and if you're traveling with your fins on, make sure they're well protected (see the video below for some tips on how to protect your fins). Now, as for the width, if your board has a lot of volume and is wide, you will have to choose a bag that is wide enough so that the board is loose inside so as not to damage the board.
If you are going to travel long distances by plane or if you want to carry more than one surfboard in the same bag, opt for a heavy bag. If this is a board for everyday use, lightweight bags will do just fine. Most travel bags for surfboards have many of the same features as day travel bags, but are made with thicker padding and stronger straps and handles. You can also use it to go on day trips during your surf trip or even trick airline workers by telling them that you only have one surfboard with you.
Clumsy surfers like me should buy a travel bag and, if you're going to board an airplane, invest in a surfboard bag that takes your surfboards from point A to point B in style, with the necessary protection and comfort available.