The headband of the helmet can be resized using the adjustment knob at the back of the helmet. On Zone Standard and Zone Electro, at the headband junction near the openings for earmuffs, there are two parts that can be snapped off and moved (two possible positions) to reduce the headband circumference. The headband can be adjusted vertically at the front of the helmet. Pull the headband down at the back to the two selectable usage positions.
The chin strap should pass under the chin and be adjusted so that it sits comfortably against the skin without choking or hanging loose. Use the adjustment clamps to shorten or lengthen the chin strap length. A properly adjusted chin strap contributes to the helmet's stability and safety during use.
It's important that the chin strap creates a Y-shape so it does not conflict with your earmuffs. Test the fit by opening your mouth wide. You should feel the helmet pull down. This indicates that the chin strap is correctly adjusted. More information can be downloaded on the Zekler Zone product pages, or CLICK HERE to read a more detailed article.