When I got these I tried them on and they were pretty comfortable. They keep my feet warm, but for some reason, kitty litter pellets keep getting inside them. I have 5 cats so the litter is tracked as soon as I'm done vacuuming. When I walk over some, or over very small pebbles or sand outside, it gets inside of the boot. I've checked several times and I see no holes and it appears that everything is put together correctly, but I have to keep emptying out my boots every time I walk in them.