I used to run a sports shoe store for 6.7 years, but now my mother runs it. You can't pick the number when you get the goods, especially when you just opened the store, because you don't know what number you sell well there. Let me tell you a little trick. General men's shoes 39-44, women's shoes 35-40. A shoe usually has more than one color. If there are two colors, for example, men's shoes have red and black. You take the red 39-43 and the black 40-44. In short, small and large are not easy to sell (especially small), and medium is ok. This batch of goods comes down, and you can feel the pattern. If it sells well, it can be delivered by phone, which is very convenient. According to my experience, women's shoes 37, 38 and 39 are the best, and men's shoes 4 1, 42 and 43 are the best. You can take more pairs of these sizes according to the situation. I hope I can help you and wish you a prosperous business!