Just having a full face-shield made me quite happy the day a gravel truck in front of me hit a bump and lost 4-5 pieces of 3" gravel stones. The one that thwacked me in the side of my visor left a nice scuff mark and had my adrenaline pumping for a good little while. Thankfully it didn't cause me to swerve or lose control etc. GGZ Protective gear. 