The best kids BJJ gi is one that fits your child now with a little room to grow, uses a light or mid-weight cotton weave that is comfortable to move in, has an easy waistband, and meets your academy's colour rules. Fit and comfort matter more than brand or extra features. Choosing the right gi can make a significant difference in your child's BJJ journey, ensuring they are comfortable, confident, and ready to train.
Key Takeaways
- Size and growth room: Use the brand’s size chart and allow a little room for growth without buying a full size up.
- Weave weight: Opt for light to mid-weight cotton weaves for comfort and flexibility.
- Waistband type: Choose elastic or elastic-plus-drawstring waistbands for ease of use.
- Belt included: Check the listing title to see whether a white belt is included, which saves a separate purchase.
- Academy rules: Always check your academy's uniform policies regarding colour and patches.
Table of Contents
- What makes a good kids BJJ gi
- Fit and growth room
- Weave weight for children
- Waistbands, belts and small details
- Academy colour and patch rules
- One gi or two?
- Caring for a kids gi
- Frequently Asked Questions
What makes a good kids BJJ gi
When selecting a kids BJJ gi, several factors are crucial to ensure your child’s comfort and performance. Here’s a checklist to help you make an informed decision:
| What to check | Why it matters for a child | What to look for in general |
|---|---|---|
| Size label and growth room | Kids grow between terms | Use the brand's chart; a little room, not a full size up |
| Weave weight | Heavy gis feel stiff and hot for small children | Light to mid-weight cotton weaves |
| Waistband | Young children struggle with long drawstrings | Elastic or elastic-plus-drawstring waistbands |
| Belt included | Saves a separate purchase for new students | Check the listing title |
| Colour | Many academies ask kids for white or a set colour | Ask the academy first |
A good kids BJJ gi should prioritize comfort and fit. A gi that fits well and allows for some growth room will ensure your child can move freely and comfortably during training. Additionally, choosing the right weave weight and waistband type can significantly impact your child’s experience.
Fit and growth room
One of the most important aspects of choosing a kids BJJ gi is ensuring it fits well while allowing room for growth. Kids grow rapidly, and a gi that is too tight can restrict movement and hinder their training. On the other hand, a gi that is too large can be cumbersome and uncomfortable.
When measuring for a kids BJJ gi, use the brand’s size chart as a starting point. These charts can vary significantly between brands, so it’s essential to refer to the specific chart for the gi you are considering. A good rule of thumb is to allow a little room for growth without buying a full size up. This ensures the gi fits well now and can accommodate some growth over time.
To check the fit, have your child stretch their arms out and bend their knees. The sleeves should extend to the wrist but not be overly long, and the pants should cover the ankles without being too loose. If the gi is too tight in these areas, it may be necessary to go up a size.
Weave weight for children
The weave weight of a BJJ gi is crucial for children, as it affects the gi’s comfort and flexibility. Weave weight is typically measured in grams per square meter (GSM), with lower GSM numbers indicating a lighter, more breathable fabric, and higher GSM numbers indicating a heavier, stiffer fabric.
For small children, a light to mid-weight cotton weave is generally more comfortable and easier to move in. A listing such as the Kids Ultralight BJJ Gi is listed as a 275 GSM jacket with 10 oz ripstop pants. Lighter weaves like this tend to feel more breathable and flexible, which many younger children and newer students prefer.
For older children who train more often and are more serious about their BJJ, a mid-weight gi might be more appropriate. A listing such as the Kids Pearl Weave BJJ Gi is listed as a 400 GSM pearl weave jacket with 10 oz cotton pants. In general, a pearl weave feels thicker than a light weave, so check the listing and your child's comfort before choosing it.
When in doubt, consider the child’s age, training frequency, and personal comfort preferences. A light to mid-weight gi will generally be the best choice for most children, ensuring they can move freely and stay comfortable during training.
Waistbands, belts and small details
When choosing a kids BJJ gi, the waistband is a crucial detail that can significantly impact comfort and functionality. Young children often struggle with long drawstrings, which can be cumbersome and difficult to adjust. Elastic waistbands or a combination of elastic and drawstring are more practical for kids. The elastic provides a snug fit that stays in place, while the drawstring allows for some adjustability. This combination is ideal for growing children who need a gi that can accommodate changes in their body.
For example, a listing such as the Kids Beginner BJJ Gi is listed as having an elastic waistband and a white belt included. The included white belt saves parents a separate purchase, which helps new students.
Small details like reinforced stitching, especially at the seams and stress points, can also make a big difference. Look for gis with double or triple stitching to ensure durability. Knee reinforcement is another important feature, as it helps the pants withstand the rigors of training. These details may not be as noticeable as the overall fit or color, but they contribute significantly to the gi's longevity and comfort.

Academy colour and patch rules
Before making a final decision on a kids BJJ gi, it's essential to check with your child's academy regarding their uniform policies. Many academies have specific rules about the color of the gi and whether patches or additional embellishments are allowed. Typically, white gis are the most common, but some academies may require or allow other colors like blue or black.
For example, if your academy permits printed or colored gis, a listing such as the Kids Graphic BJJ Gi is one example to compare. It is listed as having a 350 GSM cotton weave with lightweight cotton pants and an elastic waistband. However, always verify the academy's rules before making a purchase to avoid any issues.
Some academies also have guidelines for patches, which can be used to represent the academy, rank, or achievements. If your child's academy allows patches, consider purchasing a gi that is compatible with patch application. This can help your child feel more connected to the academy and proud of their progress.
One gi or two?
Deciding whether to buy one or two gis for your child depends on several factors, including training frequency and the length of the training period. For beginners who train once or twice a week, one gi is usually sufficient. However, if your child trains more frequently or participates in tournaments, having two gis can be beneficial. This setup allows for one gi to be washed and dried while the other is in use, ensuring that the gi remains clean and hygienic.
Additionally, having two gis can provide some flexibility in case one gi needs repairs or is unavailable. This is particularly important for children who train intensively or are part of a competitive team. It also helps to manage the wear and tear that comes with frequent use, extending the lifespan of each gi.
Caring for a kids gi
Proper care is essential to ensure that a kids BJJ gi lasts through the training term. Start by following the care label instructions, which typically recommend cold water washing and air drying. Hot water and the dryer can cause the gi to shrink and lose its shape, which is especially problematic for growing children. Using a gentle detergent designed for athletic wear can also help maintain the fabric's integrity and prevent odors.
When washing the gi, avoid using fabric softeners, as they can break down the fibers and reduce the gi's durability. Instead, consider adding a cup of white vinegar to the rinse cycle to help remove any lingering odors. After washing, hang the gi to air dry in a well-ventilated area, away from direct sunlight, to prevent color fading.
Regularly inspect the gi for any signs of wear, such as fraying seams or loose threads, and make repairs as needed. This can help extend the life of the gi and ensure that it remains in good condition for your child's training. Additionally, teaching your child how to properly roll and store their gi can help maintain its shape and cleanliness between uses.
Frequently Asked Questions
How do I size a kids BJJ gi for fast growth?
To size a kids BJJ gi for fast growth, use the brand's size chart to find the right fit. Ensure there is a little room for growth but avoid buying a full size up, as this can affect your child's performance and comfort. Check the sleeve and pant length with the child's arms stretched out and knees bent to ensure a good fit.
My child is between two sizes, should I go bigger to grow into it?
If your child is between two sizes, it's best to consult the brand's size chart and consider how the gi fits now. A gi that is slightly larger can provide room for growth, but it shouldn't be too big. A good fit ensures better performance and comfort during training. Some brands have more generous sizing, so always refer to their specific chart.
What if we can't try the gi on before buying?
If you can't try the gi on before buying, use the brand's size chart and measuring guide to get the best fit. Measure your child's height, weight, and limb lengths, and compare these to the chart. Check the store's size guidance and returns information before you order, and try the gi on as soon as it arrives.
How often should I wash a kids gi?
Wash a kids BJJ gi after every training session to keep it clean and hygienic. Use cold water and a gentle detergent to prevent shrinking and damage. Air dry the gi instead of using a dryer to help it keep its shape. Always follow the care label instructions for the best results.
Conclusion
When choosing the best kids BJJ gi, focus on a fit that allows for a little growth, a comfortable and appropriate weave weight, and a waistband that is easy for young children to manage. Checking with your academy for any specific rules and caring for the gi properly will ensure it lasts throughout the term.












