The phenomenon of slippage on the surface of shoes is mainly caused by Sole Between ground and ground Friction To a certain extent. When designing outsole patterns, the anti slip methods often used are mainly grasping and adsorption. There are two ways to achieve the purpose of outsole grasping the ground:

One is to reduce the stripe, that is to say, reduce the corolla. This is when the shoe is worn on a more soft road, the corolla can be inserted more or less into the ground to play a role of anti sliding. The two is to design thinner flake patterns. When the outsole of the pattern is used, it is subjected to pressure, and the flake pattern is easy to dump. The film after dumping increases the area of contact with the ground, resulting in better anti slip effect. This pattern is suitable for hard and smooth ground.

　　 Outsole pattern Another design method of anti slip is adsorption. Adsorption is to make the whole or part of the outsole adsorbed on the ground so as to achieve the purpose of anti slip. There are two ways to design anti slipping by adsorption, that is, the overall adsorption and partial adsorption of the outsole. The overall adsorption is to contact the ground around the bottom, leaving the four periphery and not touching the ground, so that the outsole becomes a bottomed shaped leather bowl. After adsorption, it is adsorbed on the ground after pressure. However, this adsorption method usually requires a flat bottom. Over the past ten years, the bottom of the molded outsole tends to have a certain front warping so as to meet the need of bending the foot when it is moving. Therefore, it is difficult to achieve the overall adsorption. Instead, it is partial adsorption. The local adsorption is designed with several bowl shaped suckers on the front and rear heel parts of the outboard, with the bending of the shoe, when the sucker touches the ground, it plays the role of anti sliding.