I bought a pair of Birkenstock boots recently. I have lots of other Birks (not boots before) and they fit me great and help with my joint issues. I bought a pair of Chelsea boots and the fit on the leg part is very loose. I did need to buy a size smaller, and the fit on the foot part is perfect it is just as I walk the front bit on the top of my foot going up my leg is not flush with me and so as I walk my shin is banging against the top of the boot. I could wear thinker socks, but I am not sure if this will cure it. Any advice please or anyone had this? Should it fit more flush? I can get three fingers down the front part of the boot. Thanks.