Size M Swiss Ball - Blue

Ref. : 8603634

This gym ball is perfect for toning your body, strengthening your back, and stretching. It is available in 3 sizes (size 1, size 2 and size 3).

You'll love: - Its durability - Its versatility - Its grip You'll be amazed by: - Its comfort - Its design and new colours - The exercises that come with the ball

Color: peacock blue / teal blue / ice blue

Home delivery

Check stock in-store

Our services :

  • Free delivery for Decathlon brands orders above $399
  • All Decathlon products are eligible for lifetime return

Products benefits


Extra thick to make it safer and longer lasting


Use it for fitness workouts, Pilates, stretching, and more


The shiny lines are non-slip and allow you to be more precise

Technical information

Which Gym Ball size should you choose?

To choose the right size, please see the guide below.

- Size 1 (diameter: 55 cm):
For users who are less than 1.6 m tall and weigh less than 85 kg

- Size 2 (diameter: 65 cm):
For users who are less than 1.6 m tall and weigh more than 85 kg
For users between 1.6 and 1.8 m tall who weigh less than 85 kg

- Size 3 (diameter: 75 cm):
For users who are taller than 1.7 m and weigh more than 85 kg

Remember that you can download the user instructions below.

Inflating your Gym ball to a safe size

We recommend using a pump (sold separately). Ref.: 8214626 / 8490986
Pump not included.
After purchasing your gym ball, inflate it to the maximum dimensions for its size with the help of the tape measure. Size 1 = 55 cm, Size 2 = 65 cm and Size 3 = 75 cm.
Next, check the size and adjust it if necessary so that your knees are at hip height when you are sitting on the ball.

Remember that you can download the user instructions below.

What comes with the Gym ball?

The gym ball comes with:
- 2 plugs, in case you misplace one of them
- a plug remover to easily remove the plug when you want to inflate / deflate the ball
- a tape measure, to inflate the ball correctly to a safe size
- instructions for use
- a training poster to teach you the basics.
Remember that you can download the user instructions below:$162a572dc90bddf980d25188afc001eb/8603633%208603634%208603635%208640038%208

What exercises can you do with your Gym Ball?

Don't know which exercise to start with, or how to get your posture right?
Take a look at the poster below:$cb1af4a5efa477ea4606585f44e5ef7b/poster%20definitif%20pixl.pdf

(Copy and paste the link in your web browser)
Download our poster on your smartphone or print it out to gain access to a dozen free exercises developed by our design teams as well as qualified sports coaches!


2 years

Product concept & technology

Product Composition

Metallic structure 100% Polyvinyl Chloride


Store it indoors on a clean floor (so that there is no risk of it bursting).
Do not store near heat sources (risk of bursting) or on wooden flooring (risk of marking).

User Restrictions

Max user weight: 130kg/286.6lbs


To guarantee quality and safety, we perform numerous tests before our balls hit the shelves.
There are two main tests:
- a repeat compression test: we compress the ball more than 100,000 times with a weight of 195 kg.
- a static compression test: we compress the ball with a weight of 325 kg.

Approved By

"This accessory is a must for gentle fitness training." Jean Michel, Decathlon Coach

Maintenance advice

To clean with a wet cloth..


To have more informations about this product, consult the notice

User reviews

Questions & Answers