Designed for absorbing sweat in the CLIMBER'S hands.

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    SKU: S8908 (1380190)
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    Delivery in 7 to 8 days

    € 1.28
    Characteristics Designed for absorbing sweat in the CLIMBER'S hands.
    Product Benefits
    1. Versatility
      Indoor, bouldering, big wall climbing.
    2. Ease of use
      to put in the chalk bag.
    3. Absorption
      powdered chalk for keeping hands dry
    • Weight
    Product testing
    1. Composition
      Structure : 100.0% Magnesium (MG)
    2. Product catchline
      Large stock of chalk to fill the bag.
    Product reviews
    4.1 / 5
    75 reviews
    75 users recommend this product
    Write a review
    • Fine and grippy

      adrian (United Kingdom)
      Used for 3 to 6 months
      Feels good on the hands, not at all lumpy, does not irritate skin. Does what you want it to on the holds. At a great price!
    • Uncomfortable

      Ashwin (India)
      Used for 2 to 8 weeks
      The chalk pack I've bought is really uncomfortable to use. There are a lot of clumps that I need to break it each and every time before climbing. Its like I've poured water on my chalk bag by mistake.
      It does works as a normal chalk for climbing
      Too many clumps which I need break and use
      Response of the brand
      Hi Ashwin,
      We thank you for your interest in our products and appreciate your feedback.
      The magnesium chalk is a mix of pure powder and parts of fragments from the same material, a hybrid between a chalk block and powder. The chalk has the ability to get humidity and this phenomena is pronounced if it is powder. Also, climbers appreciate to break the few small blocks themselves. That's why, voluntarily we avoid to mill all the product to powder form. It also helps in less wastage. If the chalk you have is different than that, then maybe it it has absorbed more humidity and you can get it exchanged in the nearest Decathlon store.

      I am available in case of any questions.
      Happy Climbing!

      Thanks and Regards,

      Ravindra Charan
      Product Trainer & Community Manager-Mountain Sports
    • Spitze

      christian (Germany)
      Used for 1 week or less
    • Not really powder, just becomes solid

      Dennis (Germany)
      Used for 1 week or less
      I thought this was a good solution to using expensive chalk balls. However, this powder is the worst I've tried so far. For some reason it's very hard to pulverise the hard parts and on top of that, even if you manage to make it into a fine powder it will just turn into tiny pebbles/rocks in your chalk bag. I've tried powders from other climbers and they are way better and they just stay as a powder.

      Expensive as well, I can get a 200g block of magnesia for 1,50 euro at my gym which pulverises into really fine powder with hardly any effort. Don't waste your money on this.
      Make it a really good, fine powder instead of this
      Response of the brand
      Thank you very much for taking time to assess our Simond Magnesia Chalk Block. We are sorry that we couldn't sate you with this product. 
      Because we didn't get the same feedback before, we contacted our Product Manager in France to receive an answer about the reason for this problem. 
      We will contact you as soon as we have more information. Nevertheless thanks again for your honest feedback, without that we wouldn't be able to improve our products. 
      Of course you can exchange or refund it in your next Decathlon-Store or send it back to our Onlineshop. For this, please contact our Servicecenter: service[at]
      Mit sportlichen Grüßen
      Team DECATHLON
    • Muy practico.

      David (Spain)
      Used for 1 week or less
      Me lo lleve para probarlo y realmente es efectivo y practico.
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