I've ordered 1 size down from what I usuall wear in other shoes (puma, converse) following recommendations from another site reviews and I'm glad I did it. I still think that I could've ordered 1 and half size down instead, as I feel there's still a little gap to be filled to be true fit (even wearing winter socks). I normally wear 10 US / 43 EUR on puma and converse sneakers (in which there's no extra room left and are still comfortable) and 9 on Clark's Desert Boots, these were 9 US / 42 EUR. They feel great on the inside like it had a little cushion, the shape of the sole makes walking around very easy. They are a little heavy, a little stiff, and can bother you a little bit around the ankle, but maybe it's just because of the break in period.