How do I choose the right size helmet for my Rider?

To determine the best size helmet for your child, you will need to measure the circumference of their head. 

Start in the middle of the forehead, and wrap the tape around the widest part of your child’s head (above the ears). If your child falls between two sizes, we recommend picking the larger size.

To help, check out our step-by-step video below!

Click here to view our helmets and their sizes. 

Are there new helmet sizes now? 

Yes. Previously woom had small, medium, and large helmets. After a product redesign, woom now carries x-small, small, and medium helmets. 

Why doesn’t woom have a size L helmet?

As a children’s bike brand, woom bikes focuses on making child-specific products for young cyclists. We recommend buying an adult-sized helmet if your child has outgrown the size M helmet.

XS and S size helmets are out of stock. When will they be back?

XS and S helmets will be available in late 2022. To sign up to get notified when they are available, click “Notify Me When Available” on the KIDS’ Helmet product page for the desired size.