I bought a pair of QUOC Chelsea and immediately used them for a bike tour from Germany to the Czech Ore Mountains. The weather was (luckily) not as rainy as expected and the shoes protected me from mud and cold (~5° Celsius it was at the lowest temperature). I wore the shoes together with a pair of Extra Fine Merino Tech Wool Socks and am very happy with this combination. My feet are rather wide. Depending on how narrow or wide the shoes are, a 42 or 43* usually fits me. I ordered the Chelsea Boots in 43 and they fit perfectly. I've only done one serious bike ride in the shoes so far and a handful of trips to the office, and I can highly recommend them. ___ *I have a pair of 'old' Gran Tourers in 42 1/2 that fit me very well. Translated with www.DeepL.com/Translator (free version)