I ordered these in 42 since I wear a 10.5 but my toes were pushed against the inside of the toe box so I sent them back for 43s. The 42s were good quality, genuine Sanitas, with the Danish flag logo sewn inside the heel and nice welting. The 43s were not only so huge that they gapped on both sides of my foot and heel, but they were an entirely different, poorer quality. They had plain bare metal staples on the external welt, making the clog look so cheap and no flag logo sewn inside, so I question if they even were Sanitas. I guess I won't be buying shoes on Amazon again, even though the free shipping both ways is handy.