Can you help me choose the right size? My head measures 55cm and I have to decide between S or M.

Can you help me choose the right size? My head measures 55cm and I have to decide between S or M.

Hello (NAME) Thank you for your e-mail. My name is Manuel and I am happy to help you :) If your head measurement is 55cm, you should choose size S. Anyway, if you need another size you can return the helmet and choose the one that fits best to you. Check out our shippings and returns policy: https://closca.com/pages/faq . We hope you have a great day.