The easiest way to get your men's shoe size right is as follows: place your heel against a wall and mark, on a sheet of paper, the place where your longest toe reaches. Then measure the distance and add 0.7 to get the exact measurement. And it would already be! It is important to take this measurement with socks similar to the ones you are going to use with the footwear we want to buy and measure both feet and choose the largest size (few people have identical feet).