Advanced ABS/ Polycarbonate shell construction exceeds DOT/ECE 22.05 standards
Fully-removable, moisture-wicking, and anti-microbial Heal-Tec comfort liner
Dual-density EPS liner
Fog-free shield with no-tool quick release and shield lock
Wind tunnel proven ventilation
Two shell sizes for better fitment
D-Ring closure system with padded neck straps
Size Chart for the Z1R Ace Transit Royal Air Helmet
HOW TO DETERMINE YOUR CORRECT HELMET SIZE.
1. MEASURE YOUR HEAD. Determine the circumference of the widest part of your head by using a flexible tape measure. Generally, the widest part of a person's head is the area 2.5 cm (1") above the eyes and ears. However,
we suggest measuring at a few points both above and below that line to determine the greatest measurement before referring to our size tables.
We also suggest testing the fit of a helmet one size smaller and one size larger than what the chart recommends. No helmet can provide protection if it's too uncomfortable to wear.
Comment: The sizing was right on. The helmet looks just like it's picture. It is comfortable to wear and great for warm weather riding. I did notice there seemed to be more wind noise with the shield down than when it was up. I wish Z1R would offer replacement shields in different colors