Children's BJJ Gi: the most frequently asked questions simply explained

Sizes C00 to C3 made simple. Venum Kids BJJ Gis with free white belt at Vikingstore Switzerland 

A well fitting BJJ Gi is essential for children practicing Brazilian Jiu Jitsu. It not only influences comfort but also how techniques can be performed correctly. Especially for kids, the Gi should be light, durable and well cut so they can train freely and feel comfortable.

At Vikingstore you will find a wide range of Venum Kids BJJ Gis designed specifically for young athletes. Each Gi comes with a free white belt so your child can start training right away, whether in class or at competitions.

Venum Kids BJJ Gi Size Chart (C00–C3)

The Venum sizes are based on the child’s height. If your child is between two sizes, we recommend choosing the larger one. Cotton Gis typically shrink by 3 to 5 percent after washing.

1. Which size is right?

Choosing the right size ensures freedom of movement and durability. The size chart above helps you decide.
If your child is between two sizes, go for the larger option. A small amount of shrinkage after the first wash is normal. If you are unsure, you can get personal advice at the Vikingstore in Bern.

2. Do kids BJJ Gis shrink when washed?

Yes, depending on the material, a Gi may shrink by 3 to 5 percent.
Venum Kids BJJ Gis are made of durable cotton fabric and are prewashed to minimize shrinkage.

Care instructions:

• Wash at max. 30 °C
• Do not tumble dry
• Air dry

This keeps the Gi in shape and ensures it lasts through many training sessions.

3. Kids vs. adult Gi – what is the difference?

Kids Gis are not simply smaller versions of adult uniforms. They differ in:

• Fit: narrower waist, shorter sleeves and pants
• Weight: lighter fabrics for easier movement
• Price: kids Gis often include a belt

This makes them perfect for beginners and young competitors.

4. Material and comfort

Venum Kids BJJ Gis are made from Pearl Weave cotton. This fabric offers:

• high durability
• a comfortable feel
• excellent freedom of movement

Kids benefit from light, breathable fabric that does not restrict them during intensive rolling.

5. IBJJF approval and colors

For children’s competitions under IBJJF rules, white, blue and black Gis are approved.
Many clubs are more flexible when it comes to colors and logos during kids training. Venum Kids BJJ Gis are suitable for both regular training and competitions as long as they match IBJJF color rules.

6. What is included?

Every Venum Kids BJJ Gi at Vikingstore comes with a free white belt. This saves parents from an extra purchase and lets children start training immediately.

7. Easy to care for

A clean Gi is essential for hygiene and durability.

Care tips:

• Let it dry after each session
• Wash at 30 °C without fabric softener
• Wash separately to avoid color bleeding
• Air dry only

8. How long does a kids Gi fit?

Depending on growth spurts, a kids Gi usually fits for 6 to 12 months. Many parents choose a slightly larger size so the child can grow into it. For competitions, the Gi must fit correctly, so avoid going too big.

9. Brand differences for kids Gis

Venum is one of the most popular BJJ brands. Typical features of Venum Kids Gis include:

• excellent fit
• light weight
• strong stitching
• sporty design

Compared to other brands, Venum Kids Gis run true to size to slightly athletic.

10. Color and style – what is allowed?

In regular training, children can usually wear any color. For competitions, the IBJJF allows only white, blue or black. A classic Venum Gi always meets the requirements.

Buy Kids BJJ Gi in Bern or Online in Switzerland

Visit the Vikingstore in Bern at Spitalgasse 36 for personal advice on size and model selection.
Or order online for fast delivery across Switzerland.

Shop Kids BJJ Gis here

Image Notice:

The images used in this article were created with the help of artificial intelligence (AI). The people shown are entirely fictional and do not represent real athletes.

Of course, we would prefer to show real fighters and athletes. However, professional sports photos often come with very high licensing costs and can quickly reach several hundred Swiss francs per image. In order to keep our content freely accessible, we occasionally use AI-generated illustrations.