39 yards equals 24.5 centimeters, and 40 yards equals 25 centimeters. ?

Shoe size, also known as shoe size, is a standard unit system, which is used to measure the shape of people's feet in order to match shoes.

Foot length refers to the horizontal straight line distance between the apex of the longest toe and the heel protrusion. Be careful not to measure the feet directly, because there will be great errors in direct measurement. Instead, use white paper, step on the white paper and draw the periphery of the foot with a pen along the foot, or mark the front and rear ends of the foot respectively, and measure the length according to the drawn foot map, which is the foot length.

Extended data:

Matters needing attention in shoe selection:

1. Observe whether the skin color of shoes is normal and whether there is aging. Secondly, carefully observe the stitching details of shoes, whether there is degumming or hemming.

2. It is best to choose shoes from 3 pm to 6 pm, because your feet will be slightly swollen at this time, so you can wear them at this time. At other times, your feet are too small in the morning and too swollen at night.

3. After buying shoes, carefully check all the shoes, including whether the trademark is complete, whether the shoe size is correct and whether the packaging is intact. Remember to keep the shopping voucher after purchase, and you can return it at any time if it is not suitable.

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