These are really nice boots and have seen not a whole lot of use.  I haven't cleaned them, so they will clean up even nicer than they already are.  This is an expensive Military Combat Boot at a bargain basement price.  I bought these military boots at auction with some other brands like Belleville and Altama.  They said they were Danner, but I can't find any markings to indicate who they are made by.  So I really don't know if they are Danner or Not.  And most Danner boots have a logo on the side of the boots, and these don't.   Regardless, they are very nice quality boots and the ASTM numbers indicate that they pass all safety protocols at the highest level.  And they have a passing EH for Electrical Hazards, which many boots don't have.  You definitely will not see that in less expensive combat boots.