bike helmet rock climbing Helmet, Carbon Black ensuring smooth airflow and reducing stuffiness. Petzl A073DA00 Sirocco Helmet White

The drag knob has an internal micro clicker (red arrow) that works in conjunction with a brass disc (blue arrow) to produce a clicking sound when you adjust the knob, and more importantly to prevent the knob from turning and changing the drag sitting when the spool spins during a fight

I also used them for shorter hikes that I wouldnt wear my hiking boots for

but also more sensitive to sharp folds

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Wind and ambient noise are dampened, and calls from other riders or approaching traffic often reach you more muted