What are bungee jumping cords made of

Bungee cords available at RopesDirect

Everything you need to know about bungee cord

Got a question about bungee cords? Well, you’re in luck.

As a leading online supplier, there’s not much we don’t know about this stretchy style of cordage.

Here at RopesDirect, we stock a fantastic range of elasticated bungee cords – with a size, length and colour to meet most needs. And if there’s something you’d like to know before you commit to a purchase, you’re always welcome to get in touch.

Before emailing us though, we recommend reading through the FAQs below. These are the questions we’ve been asked time and time again by previous customers. So the chances are, you’ll get the answers you need – and can have your order completed in no time.

Bungee cord FAQs

What is a bungee cord?

Essentially, a bungee cord (often referred to as a shock cord) is a type of rope, which consists of an elasticated rubber core and a braided outer sheath.

The core can be made from either natural or synthetic rubber. Multiple strands of the rubber are bundled together, then surrounded by a flexible sheath – typically woven from cotton, polypropylene, or nylon. And a fixing, such as a hook end, is applied to one or both ends.

As the cord is stretched, the interior core of elasticated fibres lengthens and builds tension, whilst the braided exterior tightens around the core. This allows it to be used for a myriad of applications, including everything from tying objects down (without a knot) to lifting and towing.

How are bungee cords made?

We won’t get into all the technical details here. But to give you a better idea of their construction, elastic bungee cords are typically made via a three-step process:

Step 1: Extruding – the rubber fibres are first extruded into long ribbons. This is done by placing the rubber into a heated cylinder and forcing it through a small hole (or die) to create the desired shape.

Step 2: Preparing – the individual ribbons are coated with powdered talc or soapstone, to prevent them from sticking together when used outside or in hot temperatures.

Step 3: Braiding – the ribbons are fed through a braiding machine, which squeezes multiple ribbons into a bundle and covers the bundle with a tight weave of yarn. This weave can be any colour and may be patterned for decorative purposes.

Here at RopesDirect, all of our bungee cords are made in Europe by an ISO:9001 registered manufacturer. As such, they’re of exceptional quality and meet the highest specifications. We stock a diverse selection of diameters, ranging from 3 – 16mm, and you can choose from many different weave colours, including solid black, white fleck, neon yellow, red, green, orange, blue and more.

Diagram to show how bungee cords are made

What’s the difference between a bungee cord, shock cord, and elasticated cord?

This is a really easy one to answer – there’s zero difference.

Bungee cord, shock cord, and elasticated cord are three names that are used interchangeably, to describe a cord with a stretchy rubber core and a braided outer sheath. In fact, all of the bungee cords available on our site are actually listed as shock cords, because they’re exactly the same thing!

Having said that, it’s important to note, bungee cords are not the same as bungee straps.

Straps are made from a solid piece of EPDM (ethylene propylene diene monomer) rubber with eyes moulded into each end – through which a hook can be inserted. And whilst they tend to offer more strength than bungee cords, they’re not as elasticated.

What are the properties of a bungee rope?

All of our bungee ropes have either a polyester or polypropylene outer cover and a natural rubber core. And as a result of these materials, they demonstrate many useful properties. For example, they are:

  • Stretchy – capable of 100% elongation, they can stretch to double their original length and offer fantastic shock resistance. Perfect for general purpose use. Note – for safety we do not recommend using at maximum stretch.
  • Durable – they’re incredibly tough and hard-wearing. Offering excellent resistance to everyday wear and tear, they’re going to last a long time.
  • Waterproof – neither the rubber core nor the sheath will be damaged by water. As such, they retain functionality whilst wet and are suitable for prolonged outdoor use.
  • UV resistance – whilst polypropylene offers good UV resistance, the UV resistance demonstrated by polyester is very high. An outer sheath made from either of these materials is a good choice for outdoor applications.
  • Strength – no matter which diameter you choose, you can expect industry-leading strength and resilience.
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What are bungee ropes used for?

Commercially, elasticated bungee cords can be selected as a cost-effective alternative to metal chains – used to lift, move, and lower heavy items and equipment. But most commonly, they’re used to secure objects into place, without having to tie a knot.

For example, they’re often used to hold down:

  • sailing boats
  • canoes and kayaks
  • caravans and camping tents
  • car, boat and trailer covers
  • roof-racks and curtain-sides
  • tarpaulins and trampolines

They can also be surprisingly useful around the home. From child-proofing cabinets and doing your weekly workout to keeping garden furniture firmly on the ground (no matter how windy it gets outside!) – bungee cords can do a lot more than you might imagine!

Shock cords with end hooks

How far can a bungee cord stretch?

All elastic bungee cords are manufactured to achieve a certain level of stretchiness. This is known as the ‘elongation rating’ and is expressed as a percentage of the cord’s unstretched length.

For example, a 10m bungee cord with a 100% elongation – such as those available at RopesDirect – would stretch to double its original length (20m). Whereas a 10m bungee cord with a 50% elongation would only stretch to around 15m.

Please note, you should never use bungee ropes at their maximum elongation. Not only is this a risk to your safety, the rope will not work as well as it should and is likely to deteriorate very quickly.

To help you choose the right length for your needs, here we’ve created a simple bungee cord size chart – with various rope lengths and their corresponding maximum stretch. But for further information or tailored advice regarding safe elongation, please don’t hesitate to contact our team.

Length (m)ElongationMax stretch (m)

What do I need to consider when buying a bungee cord?

When buying a bungee cord for the first time, be sure to do your research. Not only will picking the wrong product waste your time and money, it can also pose a big health and safety risk. So it’s important to give your purchase some careful consideration.

Ultimately, the key thing that you need to think about is its intended use. How do you plan to use the cord? And with this in mind, you should consider:

  • whether it’s for indoor or outdoor use
  • how far it will need to stretch
  • how strong it needs to be
  • whether visibility is important
  • which fixings will be required

Detailed information on this topic can be found in our previous blog ‘5 things to consider when choosing bungee cord’ – which is certainly worth checking out. But if you’re still unsure of the best elasticated cords for your needs, you’re welcome to contact us any time. We have in-depth knowledge of the cords available and will happily point you in the right direction.

What are bungee jumping cords made of

You may often hear the bungee cord referred to as a shock cord.

Or you may see it spelled as ‘bungie.’ Either way you come across it, the object is an elastic cord made up of one or more elastic strands forming a resistant and stretchable core.

They are typically protected by a woven cotton or polypropylene sheath. The fabric which constitutes the protective layering of the bungee cord isn’t necessarily elastic but is plaited in such a manner that the material is able to extend when tension is applied. But don’t be surprised to find bare bungee cords especially if you are going bungee jumping.

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Aside from allowing thrill seekers to hoist themselves from lofty platforms, the shock cord is also used to keep objects in place since many are sold with hooks which replace the need of tying knots. These happen to be the kind on shock cords we specialise in!

click to buy cords

They are a must have for campers who take advantage of the elastic material which allows for flexible adaptability in many situations. Need to replace a damaged strap? No problem. Want to bundle up a few twigs and sticks for a midnight fire? Solved. Need a makeshift resistance band for a bit of improvised exercise? Grab a bungee cord and begin your work out.

Plus they can in vary in size. The 30 centimeter ‘shock cord toggle ties’ latch on to the edge of tarps.These miniature cords stretch a fit through the eyelet of scaffold sheets, holding them in place. Creative homeowners have gotten in on the act of making their lives easier with imaginative uses of larger bungee cords. They come in handy in kitchens. They are useful in garages and for quick fixes in the home or out on an adventure. Speaking of adventures, about time we explored the high octane past time which depends on large shock cords, bungee jumping.


Bungee jumping is an activity in which participants jump from an elevated base while attached to an elastic band. The bungee cord is typically locked onto the feet or waist of the jumper. Participants may leap from fixed objects such as cranes, skyscrapers, bridges, ski ramps, or flying objects like an hot-air-balloon.

The activity is simple really. Get strapped in and jump. Easier said than done, bungee jumping is an experience that requires plenty of gumption. The adrenaline rush of free falling and bouncing up and down while hundreds of meters above ground level is kick that attracts the bold and daring.

There are different types of bungee jumping and many ways to jump. Participants may shallow dive, back dive or jump in a tandem amongst a number of options. Jumpers may try out the standard jump, the catapult, a bungee run, the bungee trampoline, or the Suspended Catch Air Device (SCAD) dive. It can be assumed that as the activity evolves, further styles will be added to push the excitement of jump enthusiasts. But for now, there is plenty for the beginner to explore.

5 TIPS FOR THE FIRST TIME BUNGEE JUMPERfirst time bungee jumper

Life getting a bit stale? Want to try out an exhilarating experience that you will be talking about for years? Bungee jumping may just be your cup of tea. It pays off to constantly challenge yourself, to try new things no matter how much they may initially terrify you. But we accept that some tests of will are more daunting than others, and what could be more intimidating than falling head first into the Earth. Here are a few tips to help prepare you for your first bungee jump.

  1. Are you fit enough: Don’t choose an adrenaline rush over your long term safety. Be sure that you are healthy enough for a jump
  2. Pretend. Pretend. Pretend: It is perfectly normal to be nervous right before a jump. Even if you had been anticipating the moment for weeks. Before your jump, it helps to look straight ahead keeping the intimidation of heights at bay until the last minute. Smile and distract yourself with friendly conversations until you make that final plunge.
  3. Choose the right people: Don’t leave your life in the hands of a company you stumbled upon online. Do you research and ask questions until you find a jump master you can trust. Be sure that your jump is monitored and planned by professional staff who take your experience as seriously as they do your safety. Also if possible, consider conquering your first jump with close friends or loved ones. The right company may transform a terrifying occasion into a fond memory. In no time you will feel ready for a second jump.
  4. Stay hungry: Not unlike swimming, it is recommended that you do not eat before a jump.
  5. Save the selfies for after the jump: If an item will not help keep you alive during your jump, then you probably do not need to bring it with you. That go-pro can wait until your next jump. For the first time focus on truly enjoying the experience. Try screaming louder than you ever have in your life. Your first jump is the perfect time to break your decibel record.
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Though this guide is written for beginners who are considering their first jump, we thought it valuable to give readers a goal to strive for. We understand you just may fall in love the rush of falling through the air. And at some point you are going to want to repeat the experience, push your limits. With that possibility in mind, here are three of the world’s most exciting bungee jump sites.

  1. The Macua Tower (Macau, China): In case you needed another reason to visit Macau, China, the world’s tallest bungee jump may entice you to book a trip. Participants may look forward to the delight of flinging themselves from 233 meters above ground level.
  2. The Bloukrans Bridge (Western Cape, South Africa): What can be more amazing than being a unique country, absorbing interesting customs and taking in astonishing views? Doing all of that while free falling. Amidst mountains and above a river, the Bloukrans Bridge is a tourist attraction which sits 216 meters above ground level. As the world’s highest single span arch bridge, the landmark boasts extraordinary scenery which heightens the experience of your jump.
  3. Navajo Bridge (Marble Canyon, Arizona): You can hardly go wrong if you have found a reason to use the word canyon and Arizona in the same sentence. Home of the Grand Canyon, Arizona is also home of the Marble Canyon where jumpers may enjoy a view of the Colorado river. The Navajo Bridge also happens to be one of the highest in the United states, standing 142 meters above the ground. If you ever feel like taking in one of the natural wonders of the world while your hearts beats out of your chest, this jump may be one to add to the bucket list.


bungee jumping safety tips

  1. Watch out for Whiplash: Speak to your jumpmaster about the safest jumping techniques. Free falling from elevated bridges, building and cliffs is one part of bungee jumping. The other is the rebound, begun by that jolt you are bound to endure as the cord reaches its maximum point of extension. Bungee jumping is not a risk-free activity. Dislocations, eye trauma, back injuries and rope burn are all possible consequences of a jump.
  2. Don’t get wrapped up: You can suffer from serious injury if you are entangled in the cord during a jump.
  3. Fitness check: If you have any health concerns at all, be sure to seek advice from your doctor.
  4. Equipment: Make sure you double check the length of your cord, that it is properly connected to the jump platform and that you are wearing a dependable safety harness.


Would you look at that! You made it to the end of the guide. We bet you feel ready to dare. You are probably excited to push your boundaries and perhaps even push yourself off a bridge. We, at Ropes Direct , are glad to have helped. We know you are probably not going to go shopping for a jump bungee cord or harness. You are better off trusting your jumpmaster and company with your safety. But for all other shock or bungee cord needs we are eager to astonish you with our quality products.

Choose from our bungee items for sale. Our neon , black and white shock cords are available in 3mm , 4mm, 5mm, 6mm, 7mm, 8mm, 9mm and 10mm sizes. The tough polyester cover makes our cord suitable for outdoor and marine use. But feel free to adapt the cords according to your needs. They may be cut to length, so just tell us how much you want and we will send your order over. The maximum continuous length is 100 meters.

And don’t miss out on our shock cord hooks, PVC coated metal spiral hooks for use with our polyester shock / bungee cord.. They are suitable for 4mm, 6mm & 8mm bungee cords.

Source https://www.ropesdirect.co.uk/blog/everything-you-need-to-know-about-bungee-cord/

Source https://www.ropesdirect.co.uk/blog/bungee-cords-jumping/


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