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Updated: 24 Jan, 2016

Treadley Helmet Fitting Guide

Guide to Suitable Helmet Shape and Sizes

Treadley Helmet Hats are surprisingly adjustable.  The looped elastic and toggle system enables the hats to fit on different shaped and sized cycling helmets.  Refer to the Fitting Guide below for best fit.

Treadley Helmet Sizing Guide


How to Fit your Helmet Hat