i've owned more than a handful of these things over the years and i'm not sure i ever had a pair that was waterproof. recently bought a pair from Wolveren, really like them, light, flexable, but of course don't walk in wet grass. sent em back, got another pair, same thing. all you need is wet grass and you have wet feet. the only thing i'm convinced of with gortex is every drop of water that gets inside the boot, will stay in there. none of it ever leaks out. is that what they mean by waterproof?