Slackline Infos

  1. Round 10 Slacktivity Freestyle Slackline Contest 2020

    Master Class

    The last round! Want to know more about this contest, click here.

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  2. Round 9 Slacktivity Freestyle Slackline Contest 2020

    The Ball Artist

    Want to know more about this contest, click here.

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  3. Round 8 Slacktivity Freestyle Slackline Contest 2020

    The Hardest Core

    Want to know more about this contest, click here.

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  4. Round 7 Slacktivity Freestyle Slackline Contest 2020

    Increased Control

    Want to know more about this contest, click here.

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  5. Round 6 Slacktivity Indoor Rodeoline Challenge 2020

    The Morning Routine

    Want to know more about this contest, click here.

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  6. Round 5 Slacktivity Indoor Rodeoline Challenge 2020


    Want to know more about this contest, click here.

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  7. Round 4 Slacktivity Indoor Rodeoline Challenge 2020


    It's time to go exposed and sideways. In this video Sarah Rixham will give you a few tips to start your exposure adventure on your indoor rodeoline.

    Want to know more about this contest, click here.

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  8. Round 3 Slacktivity Indoor Rodeoline Challenge 2020

    Core - Yogaline

    Here Gaelle Joubert will show you 3 yoga positions on the line. The Dove, The Plank and the Exposure sit, all great training for your Core! Are you looking for a more detailed tutorial check this playlist of YogaLine video's by Andrea Dattoli.

    Want to know more about this contest, click here.

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  9. Round 2 Slacktivity Indoor Rodeoline Challenge 2020

    First Slackline Workout

    Time to work those arms, abs and legs! Sarah Rixham will show you 3 ways to improve your strength using the slackline!

    Want to know more about this contest, click here.

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  10. ISA Slackline Gear Standards

    isa slackline certification

    Certified Slackline Gear

    The International Slackline Association (ISA) has started to certify highline-gear. Some people are wondering what the advantage of a certification might be. But before answering, let us ask you a question: Would you buy climbing gear that is not certified? Most climbers would not.

    But let us start explaining how gear can become certified. First, the ISA is in discussion with different slackline-brands to decide what the gear in question needs to fulfil. This includes:

    • Minimum Breaking strength
    • A manual that is easy to understand and explains well how the gear needs to be used
    • A clarification after how much time the gear needs to be replaced
    • Depending on the gear some further tests like e.g. slippage-test for weblocks, etc.

    Those standards are based on experience from highlining of the last decades, different studies led by the ISA, private people or companies, experience from the climbing world and the incidents and accidents that have happened in the slackline-world so far.

    Once a standard for a certain piece of gear has been decided, the company needs to send their gear to a neutral tester. This is SIEBERT CONSULTING (Walter Siebert, who then tests the gear according to the standard. The manual will be checked by a team from the ISA. Once the gear has successfully been tested and has fulfilled all the required standard, it will be officially certified slackline- or highline-gear.

    But what is the advantage for you as user? So far (March 2020) there is almost no tested gear on the market. But this will change over the next months and years and it will become a standard.

    • When buying certified gear you will know that it is safe and tested by a neutral party. In the manual you will also be able to read how it needs to be used, about the lifespan of the gear and at what point it should be replaced.
    • Insurance companies might insist (in future) that only certifed gear will be used to get an insurance covering.
    • Access: Often when talking to officials about permission to rig a slackline or highline in a public space, you will be asked whether you use certified gear. In future you can answer with yes which will for sure help you to get access to a new place.
    • Gear certification will also help to get acceptance for the sport – it is not unlikely that prohibited areas for highlining will be allowed again.
    • Shows: when offering shows and courses it will help you a lot if you can tell the organizers that you are using certified gear.

    SLACKTIVITY has started with 3 certified products: redTube, seaHorse and the leash – more will follow.


    Webbing is categorized into 4 different types, depending on the MBS (minimum breaking strength). The webbing categories A+, A, B and C of the ISA have nothing to do with the categories A, B and C that have been used by SLACKTIVITY for over 2 years now (just coincidence). Here are the ISA classifications:

    • Type A+: 40kN+
    • Type A: 30 – 40kN
    • Type B: 26 – 30kN
    • Type C: 22 – 26kN

    The SLACKTIVITY redTube is the first webbing on the market that can be used as an official highline webbing. It is categorized as webbing Type A by the ISA-Standards. This means, it has a recommended lifetime of 720 days of use. Lifetime is counted as the days that the slackline is rigged. Leaving your line rigged for a week costs 7 days of lifetime, no matter if it is being sessioned or not because UV-light is one of the main factors to weaken your line. Once the days run out, the slackline is no longer safe for highlining. Webbing can becume unsafe much earlier for other reasons like abrasion, cuts, burns or contact with chemicals.

    For permanent rigs, SLACKTIVITY recommends slacklines that have a physical connection between the mainline and the backup. This is e.g. the case with redTube Type B (SLACKTIVITY-classification of webbings with T-Loops). The T-Loop should be connected to a backup-webbing with a knot/connection that holds at least 12kN. Here you can find the breaking strength of different knots of SLACKTIVITY-Webbings.

    Be aware that every redTube sold, comes with a sewn end loop on BOTH sides of the line plus a backup loop on one side of the line. This loop can be used for a direct connection to the anchor point. More information about the use of the redTube as highline can be found in the manual.


    Also for highline-leashes there is a new ISA-Standard. And the SLACKTIVITY leash is the first leash on the market that can officially be used on a highline. According to the standard the rings need to have a MBS of at least 24kN. The SLACKTIVITY leash ring is much stronger than the required standard and convinces with a MBS of 39kN at a weight of only 51g per ring. Also the weight of the rings have been limited to 150g in the new ISA standard, because being hit by a heavy ring can lead to injuries. Therefore oldschool leashes with a heavy steel bomber ring will luckily be prohibited in future.

    SLACKTIVITY (Tobi + Sam) thanks to all people from the ISA that have worked hard to realize this standards - we think it is a big step for the slackline sport and his futur.

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  11. Take part in the game and become the Slacktivity Freestyle Champion 2020!

    From March to June 2020 we challenge you with 10 different slackline tasks that you have to master. After the task is released, you have 3 weeks to stick the challenge. Every week, a new challenge will be released. Every time you succeed to fulfill the task, you will get to the next round. Every week the tasks will become more challenging. This year, due to the circumstances, the challenges will take place on (indoor) rodeolines. As some of you might not have much space at home, surfing challenges won’t be part of the game. If the tasks are too easy for you, try to combine all of them into one combo.

    Most importantly: Please stay safe! If you feel like one of the tasks could lead to an injury, please don’t do it. You can use mats to lower down the risk. Stay home, stay safe, but don’t forget to have fun.


    See the video for a better explaination of the competition. Here you can also see the first trick of the contest! 

    Overview of tricks

      Trick Presented by Start Deadline Challenge Video Succesfull 
    Round 1 5-seconds Samuel Volery 24th March 14th April Video 260
    Round 2 Slackline Workout Sarah Rixham 31th March 21th April Video 221
    Round 3 Core Gaelle Joubert 7th April 28th April Video 181
    Round 4 Exposure Sarah Rixham 14th April 5th May Video 164
    Round 5 Balls Samuel Volery 21th April 12th May Video 139
    Round 6 Morning Routine Lukas Irmler 28th April 19th May Video 100
    Round 7 Increased Control Samuel Volery 5th May 26th May Video 67
    Round 8 Hardest Core Lukas Irmler 12th May 2nd June Video 47
    Round 9 Ball Artist Tijmen van Dieren 18th May 9th June Video 44
    Round 10 Master Class Samuel volery 26th May 16th June Video  

    What can you win?

    First of all eternal fame! Plus cool skills and a strong body. The Slacktivity Freestyle Champion will win a SLACKTIVITY DaVinci Line plus a Traveler Slackline Set of 40m that weights only 2kg.

    You think that you won’t make it 1st place? Good news for you: There will be a second winner! The participant that classifies in the middle of the entire ranking will win a 15m Traveler Slackline that weights only 1kg and is simply the ideal light weight rodeoline set.

    How can I participate?

    Slacktivity uploads a video of each round on their Youtube channel, this page and on Facebook. From that moment on you’ll have 3 weeks to send us back your video, performing the trick. You’ll have to upload a video of you doing the requested trick to a video-platform of your choice (Youtube, Vimeo, Facebook, others – important to have open privacy settings, so that we will be able to watch the video without any login). Then you send us an e-mail to The following information need to be in the e-mail:

    Header: Make sure to state what round it is already in the header. E.g. “Round 1 – Samuel Volery”

    • Your Full Name
    • Age (only necessary in the first e-mail)
    • Country of Residence (only necessary in the first e-mail or if you change residence)
    • Link to the video
    • Optional: Sponsors
    • Optional: Slackline-Association / Federation 

    It would be cool if you use Slacktivity Intro or logo in the video. You can download the intro video here, and the logo's here

    If you want, then share this video and challenge a friend who should also participate.


    You participate at your own risk. In the first days of the challenge we will post some pictures and videos of possible rodeoline anchoring methods. We do not take any responsibility for any damage caused to your room, house or furniture.


    Your video is your property. We will not use any of your content on our channels unless you give us written permission to do that.

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  12. Bruchlast-Abnahme von Slacklines durch UV-Licht

    SLACKTIVITY (Samuel Volery, Tobias Rodenkirch) hat an einer Midline, welche im Sommer für 7 Monate ununterbrochen gespannt war, UV-Tests durchgeführt. Die getesteten Slacklines waren in voller Exposition zur Sonne und nicht etwa im Schatten von Bäumen gespannt. Fünf verschiedene SLACKTIVITY Slacklines wurden getestet:


    Sowohl die Main-Line wie auch das Backup wurden untersucht. Im Durchschnitt hat die Bruchlast der Main-Line nach etwa 1500 Stunden Sonnen-Exposition um 8kN (=800kg) und diejenige des Backups um 7kN abgenommen. Die komplette Studie kann in folgendem pdf nachgelesen werden.

    Studie zur Bruchlastreduktion von Slacklines durch UV-Licht-Exposition (pdf)

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  13. TreeSling oder RoundSling?

    TreeSling oder RoundSling?

    Wenn man slacklinen möchte, stellt sich schnell einmal die Frage, woran die Line befestigt werden soll. In den allermeisten Fällen sind dies Bäume. Wenn dies so ist, ist es wichtig, dass die Baumschlinge breit ist, um die Zugkraft auf eine möglichst grosse Fläche zu verteilen. Ebenfalls von Vorteil ist, wenn die Schlinge längenverstellbar ist, damit sie ohne zu verrutschen auf der gewünschten Höhe befestigt werden kann. Verstellbare Baumschlingen haben zudem den Vorteil, dass die Ratsche oder WebLock nahe beim Baum hängt und somit nicht als störendes Gewicht im System mitschwingt. In diesem Falle sind die SLACKTIVITY-TreeSlings erste Wahl bis zu Kräften (Arbeitslast WLL) von 8kN (doppelt umlegt WLL 12kN).

    Andere Anforderungen muss die Rundschlinge erfüllen, wenn die Slackline an künstlichen Objekten wie Stahlträgern oder Betonpfeilern befestigt werden soll. In diesem Falle sollte die Schlinge vor allem abriebfest und robust gegen Kantenbelastungen sein. In solchen Fällen sind Rundschlingen zu bevorzugen. Auch bei grossen Kräften, wie sie bei extremen Jump- und Longlines auftreten können, sollten «RoundSlings» verwendet werden.

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  14. Final Round Slackline Contest

    Spin to win

    The final and last round 10 is here! Quite the challenge, time to get dizzy! The goal is to keep doing the same sequence of Chest - Sofa - Back - Belly, with each time you succeed to do one roll in each position you have to add one more. Is your head already spinning? Good luck! 

    In round 6, 36 people succeed. Want to know more about the competition click here

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  15. Round 9 Slacktivity Freestyle Competition

    Rocket-Mount to Sofa to Sick-Nasty to Feet.

    Lukas Irmler explains the 9th round of our competetion

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  16. Round 6 Slacktivity Freestyle Competition

    This is the 6th challenge in the contest, brought to you by our Slacktivity Athlete Richard! In this video you will learn one of his signature tricks which makes his style so amazing, powerfull and fun! The Korean roll to sofa position, the tricky part is the timing here, in time you have to put your leg over the line and quickly grab the line before it will throw your self off. Also be quick this time after the roll you need to stand up quickly. 

    Information about how to participate & how many people succeeded can be found here.

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  17. Round 5 Slacktivity Freestyle Competition

    This combo is the fifth assignment in our slackline contest. In this video Slacktivity Athlete Louis Lenobe shows the 5th challenge. Last challenge you already had a go had getting from sitting to feet, this round has this challenge once more. But now also from feet to sitting. Louise explains that it's important to change your position when you're "lightweight" aka on top of the bounce. And when you are "heavy" on the end of the bounce you have to be strong. Good luck!  

    Information about how to participate can be found here.

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  18. Round 4 Slacktivity Freestyle Competition

    This combo is the fourth assignment in our slackline contest. In this video Slacktivity Athlete Sarah Rixham shows the 4th challenge. It's time to get to the more challenging combo's. We go from backbounce, to chestroll, to feet. It has element of tricky balancing on the back, and the fast acting for getting back on the line again in one bounce. Checkout the video, Sarah will talk you right through it! 

    Some backstory from Sarah about the video:

    I’m stoked to present this combo as I hadn’t tried it before so it was fun to try something new! I’m really psyched about learning new bounce tricks on the highline at the moment as I’m finally making progress after everything feeling so hard (and scary) at the beginning. Especially the mount in this combo which took me a really long time to learn and it feels like just the basics (not to put you off trying I’ve seen people learn it in one session). So even if you think it’s too hard or scary try this combo or even just some parts of it, it will become really fun I promise!

    Information about how to participate can be found here.

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  19. Round 3 Slacktivity Freestyle Competion

    This combo is the third assignment in our slackline contest. In this video dutch slackliner Tijmen van Dieren explains how to do it.
    This combo is the perfect one to get a feeling of what it's like to do trickbouncing on a highline. Later on you can try to get bigger amplitude, for now, you can do it with smaller bounces and make it yourself a bit easier. 

    Information about how to participate can be found here.

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  20. Used pinkTube breaking strength test by the International Slackline Association (ISA)

    A piece of pinkTube has been permanently rigged and sessioned for 6-8 months. It has seen between 3000 - 5000 leashfalls and was exposed to the sun for about 2 hours per day. It was located in a forest in France, near streaming water with high humidity. This piece of webbing has been break tested by the International Slackline Association. In the following article you can see the results:

    Webbing break tests Slacktivity pinkTube - ISA

    If you want to find out more about forces that are occuring in highlines, then you can watch the following video. Be aware that highlines rigged with low-stretch webbing and short highlines see clearly higher peak forces compared to high-stretch webbing ones or long highlines. 

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