What Is a Surfboard Leash String?

September 14, 2022 3 min read

A Surfboard leash string is a rope attached to the board's deck. It prevents the board from being swept away by waves and from hitting swimmers. It can also be used to tether a kayak. Choosing the right leash is vital for safety and comfort.

Rail Saver

A surfboard rail saver is a string that attaches to the tail end of a surfboard. The rail saver is usually made of strong cord and is tied to an overhand knot. Once tied, the string should be threaded through the middle of the rail saver loop and tightened to form a large loop. Some people like to thread the rail saver through both loops to double its strength and reduce pressure on the board. However, you should not let it be too long, as you want to be able to hit the rail all around your board.

A surfboard rail saver is important because it protects the tail of the surfboard from the drag of the leash during wipeouts. Leashes can become tangling if the leash is not attached to the board. A rail saver is designed to prevent this problem by connecting the leash to the surfboard and rail.

A surfboard leash is usually equipped with a rail saver that can be easily attached to the board. Most leashes have a rail saver attached to the cord, but if you purchase one that doesn't, you may have to adjust the string to fit properly.

The rail saver is a protective piece of fabric that straps to the tail of the surfboard. It is made of a high-quality fabric that protects the rail in the event of a fall. Higher-quality rail savers will have wider, longer fabric that will protect the rail from strain when falling off the board. Higher-quality rail savers will also minimize water drag.


When you're surfing, it's essential to have a leash that secures the board securely. If the cord is dangling too loosely, it can be easily polled on the rail. This creates pressure that can rip the board. Instead, use a rail saver to spread the pressure and keep the cord from rubbing on the board's attachment.

When choosing a leash, you'll want to find one that's durable and made of good quality. Cheaper cords are often made of inferior materials and are more likely to break. Also, make sure the cord is sized for the power of your waves. If you're surfing in bigger waves, you'll want a 7mm-diameter cord. If you're surfing on a rock shelf or sand bank, a smaller cord size can work just fine.

The leash also comes with a velcro strap to attach to the ankle. While it's a great addition for safety, it can also be uncomfortable. Using a leash may hinder your performance. However, if you're a beginner, it's a good idea to wear one.

Surfboard leashes are constructed of two parts: a tubular outer element made of rubber, and a partially resilient inner reinforcement element, such as a braided nylon cord. The inner reinforcement element is several times longer than the outer casing, which keeps it from bursting. In addition, the inner reinforcement element features a swivel that rotates to improve mobility and reduce cord tangles.


A surfboard leash is a great way to keep your board in control while riding. These leashes attach to the tail of the surfboard through a velcro strap and are usually made of thick protective fabric. A swivel in the middle of a leash prevents it from getting tangled. It also prevents the leash from slicing the tail of the surfboard.

The leash should be at least five to 12 feet long, depending on the length of the surfboard. It should also be equipped with a swivel so that it does not get tangled with a leg or another surfer. A surfboard leash should also be thick so that it does not add unnecessary drag in the water.

Some surfboard leashes have ankle ropes, which are more comfortable to use. However, these can get tangled with other equipment, so ankle ropes are a better option. The ankle ropes also come with swivels, which can prevent tangles.

Leashes that are made with thicker cords are usually used in big waves because they apply more force to the leash. However, this does not mean they are useless, as long as you keep the leash sized appropriately for the power of the wave you'll be riding. For instance, a seven-millimeter diameter leash is best for bigger waves, while a six-millimeter leash is best for smaller waves.

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