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Smith Optics Size Chart

How to Size Your Smith Optics Helmet

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We offer many different models of Smith Optics Ski Helmets and bike helmets, with each having a different size range depending upon fit system, shell shape, etc. To chose the right size Smith Helmet for you or your kid, follow the steps below.

1. Carefully measure the head circumference, as shown here:

2. Use this measurement to chose the correct size helmet, using the cm as displayed in the "Please Select a Color/Size" drop down list (see image below).

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