I wore these boot covers the day I got them. Rode through a heavy rain including puddles and getting splashed by passing cars. I wore them over ventilated ICON boots and they kept my feet completely dry. Without them my feet would have been soaked as I've been caught in the rain before. (In Guam it's always raining!) They go on and off pretty easily. I would avoid walking in them too much because I don't know how well the sole will hold up. And it would be a good idea to rinse them off before packing them away since the bottoms will pick up stones and dirt easily.