In my opinion the Pro Straight small is very very thin and doesnt offer too much coverage at all. I call it the Geordi LaForge
Most people are better off with the normal Pro Straight. I have 2 Oakley Prostraights and one HS23. They look and feel about the same. If youre wondering about the clarity of either, they both use the same HDO technology by Oakley. Bauer just uses it under license.