When wearing shoes, the heel should feel comfortable and not tight, and you can slip your feet.
2, instep
The distance between the vamp and the instep should be comfortable. If you feel pressure or oppression after wearing it, it means you need shoes of a larger size.
3. Width
As for the width of the forefoot, as far as Asian foot types are concerned, most people's forefoot is relatively wide, so there should be room for feet to move back and forth in shoes. Push your feet back as far as possible, and the width of your thumb should be reserved in front to fit the shoes.
4. Length
When you run to a certain distance, your feet will swell because of fatigue, which is why you must leave a thumb wide. And everyone's longest toe is not necessarily the big toe. If it's other toes, it will be more comfortable. If you can't see it at the moment, you can draw your own foot shape on paper first, and you can clearly see which toe is the longest.
bend
Push your toes in front of your shoes and bend them with your toes. At this point, the shoe itself presents a curve along the upper. If you can't bend or feel tight because of bending, it is likely to lead to plantar fasciitis or strain of achilles tendon and calf due to insufficient flexibility.
Generally speaking, expanding the database is the last consideration. The outsole determines the skid resistance and durability of shoes. Generally speaking, the skid resistance of outsole is determined by the large shading road and hardness.
The harder the outsole, the worse the skid resistance and the better the wear resistance. Therefore, when choosing sneakers, we always choose the outsole of sneakers according to the venue where we play. Generally, indoor wooden floors are made of crystal soles, which are relatively soft outsole materials. Outdoor materials are made of more wear-resistant high wear rubber materials.