![Just ordered 4 helmets. Which should I keep? Also, my head size is 55 cm. Small goes from 51-55cm and M goes from 55-59cm. I'm right in the middle. Should I size up or down? I could look for another helmet but nothing comes close to these Giros when it Just ordered 4 helmets. Which should I keep? Also, my head size is 55 cm. Small goes from 51-55cm and M goes from 55-59cm. I'm right in the middle. Should I size up or down? I could look for another helmet but nothing comes close to these Giros when it](https://preview.redd.it/cbkcv24w9h971.jpg?width=1080&crop=smart&auto=webp&s=1e6eac10b4596881df1408bc151db06eb532018d)
Just ordered 4 helmets. Which should I keep? Also, my head size is 55 cm. Small goes from 51-55cm and M goes from 55-59cm. I'm right in the middle. Should I size up or down? I could look for another helmet but nothing comes close to these Giros when it
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