I love this shoe! It's my second pair of Rieker and I'm thrilled :-) The shoes I ordered in my normal size and he sits with you in mind; However, I have very narrow feet. So if you have slightly wider feet, which is larger in fact well served with a number.
As already mentioned, great comfortable and soft insole to adjust individually on Rist still using velcro.
And top of the Optics ago, actually fits on all clothing combinations.