I bought these boots after reviewing many different styles and am satisfied with the fit, comfortably and support they provide.  One of the main reasons I picked these boots is because they have a side zip.  The reason I gave a Three star rating versus a Four/Five is because of the side zip.  I work at a location that requires pat searches to enter, this includes removing footwear.  My expectation of having a side zip boot was so I could easily remove and put on my boots without having to retie them.  If this was the sole mission of these boots I have to say they fail.  Removing them using the side zip is no problem, however trying to put them back on is next to impossible.  They have a piece of material that expands but connects each side of the zipper, restricting how far you can separate each side of the zipper when unzipped.  Unfortunately, this piece of material prevents one from putting your foot back into the boot without untying the laces.  I have thought about cutting the material out or at the least down the middle to allow the boot to expand enough and allow the boots to be put on without untying.  I have not as of yet, and feel I should not have to alter a product in order to make it work properly.  On the positive side, I work on my feet for a 13 hour shift and the boots are comfortable.