The Forza comes with Decentered Lens for Optical Clarity. The reason why I chose clear lens was because I always ride along shaded area in the forest and 98% transmission is really good enough for me. It is also very light and suitable for those wearing safety helmet.
I tested it the next day when riding with a newbie @ FRIM. Tifosi Forza works astonishingly during riding and it doesn't fog even at low speed. It only starts to fog when I stop riding. I guess this is normal unless those Polycarbonate lenses are treated with some sort of anti-fogging chemical.
I cannot expect this pair to be as good as my other Rudy Projects but I would say that this pair comes very close to those on the top range. It is worth buying as the price is one sixth of my Rudy Project Hyde's price.
Checkout the specs below from [http://www.tifosioptics.com/single/forza.html]
Tifosi Forza Specs...
Weight: 20 grams
Fit: Small to Medium Faces
Frame Features:
- Grilamid TR-90 Open Frame Design
- Hydrophilic Rubber Ear & Nose Piece
- Lifetime Warranty
Lens Features:
- Polycarbonate Decentered Lens for Optical Clarity
- Glare Guard™ Glare Reducer to Decrease Eye Fatigue
- 100% UVA & UVB Protection
- View Lens Chart