Pinlock lens insert for HJC HJ-31 face shields, which fit HJC i10 helmets.

Pinlock technology keeps your vision fog-free by sandwiching a layer of neutral air in between the outside of the visor and the inside of the helmet. Just like a storm window, this insulated layer of air prevents fogging. 

Far superior to so-called fog-resistant chemical coatings, this mechanical anti-fog device is the best way to beat fogging up your helmet shield, bar none.

Easy to install, these inserts are a must-have for riders seeking clear vision and safety in all weather conditions.

Thie particular insert is designed specifically for .