|Hi-Tec Altitude Ultra boot|
They look like ordinary walking boots from Hi-Tec. They feel like them too. But they're not.
This is because a company called P2i is involved. It has a process by which the garment is treated at molecular level. It's a bit like putting a load of boots into a microwave - the top layer of molecules is actually altered subtly so that the water rolls off it. Here's a YouTube video demonstrating how it works:
I attended the launch of these at the London Aquarium a couple of years ago. I notice the comments on the YouTube video suggest they won't work for long; my two years suggests they will indeed, but of course if your socks get wet above the boot there's nothing to stop the water seeping down and making you uncomfortable - not the boot's fault, a wet sock trickling down from the top just does what it says on the tin.
I've been very comfortable in these for a couple of years now and will wear them again today. As the thaw starts I'll probably switch to golfing shoes - my feet will get wet but they are completely brilliant for grip when the snow turns to ice underfoot.