If you’re talking about the felt ones I believe they’re made by Akubra, or at least some of them were made by Akubra. You might be able to find something similar on their website, but hold on to your hat when you see some of the prices.
When I did a VIP/body guard driver training class we were taught to back in the majority of the time, but in a few circumstances it could be beneficial to pull in forwards.
I might have to try it again and see if I still hold that opinion. I used to hate porridge but when I was in hospital last December I started to like it.