Bought these for a cross-country trip to my daughter's farm, knowing we would be needing to tromp across streams & through the mud, but have to schlep them in our luggage. (If you need travel boots which fold, don't get these-- they have the same outer structure as regular heavy rainboots.) They are SO light, but super well made. Perfectly water tight, comfortable support insoles-- I didn't even feel a change of temperature when I waded into cold water. My only complaint is that, (despite the fact that I bought a size 11 though I wear a 10), the very top edge has a grosgrain-type binding which has no give at all, compared to the boot material itself, which has a tiny bit of stretch. As a result, if I use the needed amount of insulation (long underwear & pants, +/- ski or liner socks), the top won't pull all the way up over my calf, making the upper wrinkle. Changing the upper edge trim to an elastic fabric would solve this problem. Also, they really need an additional insole for warmth but adding even a thin Dr. Scholl-type causes rubbing on the top of my foot (and did so for my much thinner daughter with a smaller foot). A slightly deeper toe box would help that; the width, though, is quite generous.