The Bollé Sphere face shield is an excellent option for face and brow protection. 
 
It features a clear, polycarbonate visor which is resistant to high energy impact (A marking) which gives a 180° field of vision and weighs in at a mere 355g.
 
The easy to rise headgear and brow guard are adjustable for both height and depth and the SPHERE adapts itself to any situation for any use.
 
They are fantastic value for money and come with a protective, soft bag to keep them in to reduce accidental scratching when stored. 
 
The visor is replaceable and can be purchased via the JC Safety website. 
 
+ 20.5 x 39.4 cm PC shield
+ Resistant to high energy impact (A marking)