BenW

You might want to know that pretty much all the visors on the market are flexible. They work fine if you want to protect your face from wind, snow or small chunks of ice. But I think it is not the best protection for big pieces of ice. The best protection is still to look up, be aware of who does what and where, and keep your face away from your axe when you hit the ice... The Petzl Vizion can be mounted on any helmet, but of course, will work better on a Petzl one (because there are ways of retracting the visor). I also broke a few visors when I retracted them over my helmet or when I had my helmet in my backpack, squeezed in with other stuff. So you want to be carefull when carrying it. The fog factor depends on how far the visor is from your nose. That means if you're putting the visor too close and breathe like a horse, it's most likely that you'll end up being in the clouds. On the other hand, if you keep your visor at about 45 degrees, you probably won't have that problem. I guess your choice will depend on the kind of helmet you have. Here are a few links: Grivel: http://www.grivel.com/Products/img_caschi/img_accessori/pdf/1.pdf Simond: http://www.simond.com/fiche-A|SIMOND|14100VISBU-01020704.html Petzl: http://en.petzl.com/ProduitsServices/A441%20VIZION%20A44500-F.pdf