Hi! I believe there are lots of models, I have four pairs, don't know the name of any. Probably I should have asked in the shop at purchase. Well, 40€, or 20€ per pair I bought about a month and a half ago at Hofer. Not pretty not expensive, I buy to try others. I must tell you, I don't wear the others anymore. Now, when it's frozen it doesn't slip, how is that possible, I don't know, I'm amazed. Not even much serrated. Or is the rubber different, softer, I don't know. I walk every day for several hours without any special attention. I walk on water, not much over streams, neither wet nor damp. I'm also wondering how long they will last? Aja also this: on shady path I came to a patch of ice and deliberately stepped on it to see what happens. Nothing, stable. Planika I also like, I have some, but they have worn sole, they were fine. Problem is (in confidence) you have to send them yourself for sole replacement. In Alpina they arrange it themselves, that's why buy there. Now I'll buy these cheap ones, when something breaks I just throw them away. Vibram sole!! I don't feel any change. What function it has I don't know. I think layman's terms, it's cushioning. They slip on every surface, on sand, rock even smooth, really dangerous, I'm not kidding about serious things. I know how it is if you fall.
That's it, I hope I've answered everyone. Regards