Riding a motorcycle is a liberating experience. Safety is particularly important for motorcyclists, especially when it comes to the helmet which is a vital piece of motorcycle equipment and must comply with the highest safety requirements to ensure that the driver is protected against head injuries. The motorcycle helmet requires a reliable fastener to ensure that it is held securely in place on the head. This fastener should close securely and of course, should not pop open in critically dangerous situations. The popular double d fastener meets this safety standard, but the design is often laborious for motorcyclists: Trying to thread the chin strap through the double d ring whilst wearing gloves is a real test of patience.

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