Sizes run large/long by approx one size. Eg. if you usually take a size 43 then order a size 42.
We try to give the best advice about sizing. Please remember sizes vary from style to style and brand to brand. The shape of the shoe can affect the fit as well as the length and width. If replacing a style with a newer version, remember shoes can stretch and mould and become looser over time. A new version of the same shoe can feel tighter and quite different to the old friends you have come to love. Shoes mould to the shape of your feet, more in the width than the length. If they are slightly snug in the width then they may give a little and become more comfortable. If the shoes or boots are tight lengthways then they are likely too small and you need to try the next size up.
Lastly, remember that insoles can REALLY make a difference when trying to get the right fit. Ours are quite thick but thinner ones are also available. In addition to making footwear more comfortable insoles can also help shoes and boots last longer.