Did you know that your shoe size is not static? Your Best Women Crossfit Shoes feet may not grow longer but they can grow wider or thinner depending on your overall body weight changes. In this respect, measure your feet to update your size. If you have a Brannock, measuring your size is a piece of cake. You can also use a ruler and a flat surface to get the most accurate reading. Use the flat surface to place your foot and then use the ruler to measure from the tip of your longest toe, to the end of your heel. Some people assume that their longest toe is the big toe; and this is not always the case. Measure your width as well to get the right results. You can have a narrow, standard, wide or an extra wide fit. Your online retailer will provide the grid in which you can compare and determine the perfect fit.