A child's bike helmet needs to fit properly and feel comfortable. And that means it needs to be carefully designed to match the exact shape of kids' heads as they grow. Woom has studied thousands of scans of children's heads when they were designing Woom READY Kids' Helmet. That's how they ended up with a helmet that fits and protects perfectly at every stage of a child's development - without slipping, wobbling, pinching, or digging in. Plus, they added plenty of ingenious details to keep your child safe and make it easy for them to put their own helmet on and take it off again.
To determine the best size helmet for your child, you will need to measure the circumference of their head. A measuring tape is ideal for this (or a string works). Start in the middle of the forehead, and wrap the tape around the widest part of your child's head back to the starting point. Match your measured circumference to the proper size below: