1. Bounce test: Considering that there are many times in badminton to test the shock absorption effect of shoes. Put the soles of sneakers on the hard ground and jump up hard to see if the rebound and cushioning effect of shoes are good.

2. Shake test: Tilt the shoe to one side to see if there is a special load-bearing area on the sole. If so, it means that shoes have better shock absorption effect.

3. Handshake test: wrap the sole in your hand and press it with your palm to see the thickness of the sole material and the elasticity of the insole.

4. Leather palm test: pat the sole gently with your palm to see if there is a crisp sound on the sole. Generally speaking, this kind of sound shows that the sole material is hard and lacks shock absorption effect. If the sole rebounds quickly, it means that the sole has good flexibility.