BJJ for Kids in Australia: What Parents Need to Know (And What to Buy)

Brazilian Jiu Jitsu is one of the best sports you can put your kids into — it builds confidence, teaches problem solving under pressure, and gives them tools to handle conflict without violence. If you’re new to BJJ, here’s what you actually need to know.

Unlike striking martial arts, BJJ is positional and technical — kids learn to control situations rather than hurt people. The problem-solving aspect keeps smart kids engaged in a way that team sports sometimes don’t. The BJJ community in Australia is strong and welcoming, with most gyms running dedicated kids’ classes.

Most gyms accept kids from around 4–5 years old for introductory classes. Serious technical training typically starts around 6–7 when kids have the coordination to retain technique. The best move is to take them to a trial class and see how they respond.

A gi is the traditional uniform — a heavy-duty jacket, pants, and belt. Most kids’ classes require one. Look for 380gsm pearl weave, ripstop pants, and proper sizing. Our kids’ gi is built to the same standard as our adult range.

Your child’s gym will advise on their starting belt colour. Most kids start on white. A quality belt matters — cheap ones fray quickly. Our BJJ junior belts are cut for kids’ sizing and hold their knot properly.

A rash guard worn under the gi jacket protects skin from mat burns and keeps the gi cleaner longer. Not mandatory, but most regular practitioners use one.

Kids’ gi sizes run from M00 (age 3–5) through M4 (age 13–15). Use your child’s height as the primary guide. If they’re between sizes, go up. See our full BJJ Gi Size Guide for the complete kids’ sizing chart.

Look for dedicated kids’ classes, experienced coaches, a clean facility, and a clear curriculum. Attend a trial class before committing — most reputable gyms offer one free. Check that the gym has a child protection policy in place.

We make kids’ gis that can handle everything they throw at them — and look great doing it. Shop the kids’ gi →