The Fumetsu Youth shorts range is sized for younger fighters training MMA, BJJ no-gi and Muay Thai. Use the chart below to match your child's waist measurement to the right size — the cut is reinforced for school-night sparring and built to give them room to grow.
Fit tip: Kids grow fast — if your child is between two sizes, the larger size will buy you another training season before the next set is needed.

How to measure
- Waist: Around the natural waistline at navel height, no belt.
Browse the full Fumetsu Kids range. We offer 30-day returns on unworn shorts with tags intact.