I left this same review on Amazon... I work for a concrete company and have been wearing these boots for a couple of months. They've been holding up incredibly well and I ended up buying two more pairs directly from Cebu because Amazon was out of stock for my size. The sizes run big... my feet are US size 12, but I wear a US size 11 Cebu boot. Be prepared to insert your own specific footbed insert, unless you're flat-footed, as you should with any boot or shoe that you own; boot and shoe manufacturers know nothing about your particular feet, or your orthotic foot conditions. So far I've used these boots in clay, sand, broken concrete and general everyday walking, and I'm very impressed. I've owned the Cebu Farmer boot, which I liked, but I like these better... they're lighter than the Farmer boots.