This boot delivers what it promises. Have gr. 42 and ordered the boots in this size. Rieker always fit at my 90%. Attracted, fit and keeps really warm. Run even after hours of walking around outside, I do not have cold feet. I only have normal cotton socks on it. The I wear in the summer in sports shoes. The boot looks with jeans as well as from top to leggings. Since it is not made of leather, it is very easy to maintain and can be super wipe with a damp cloth and then looks like new! Strong buy recommendation for this great boots!