I was worried in case the size I wear wouldn't correspond to these specific boots. But in the end, everything is fine. More specifically, I wear size 43 & 1/3 in sports shoes. My initial thought was to order size 44. Fortunately, I took the risk and got size 43. They fit exactly as they should and they fit perfectly on the foot. They are not heavy and they are also warm. They are definitely worth their money.