Breathability and comfort PA66 webbing can be easily and continuously tailored to your exact head shape. The helmet stays securely on the head in all situations and the webbing straps are always in the best position.
ITW buckle is light, easy to fasten and normally reliable. It has some drawbacks, however. It requires the strap to be adjusted correctly at all times, and retain the adjustment, since it always fastens at the same spot.