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The material of the outsole is generally natural rubber or synthetic rubber and a reinforcing agent used. Because the outsole is located at the outermost and bottom of the shoes, it should play a good role in anti-slip, abrasion and corrosion resistance.
The advantage of natural rubber is that it is very soft, elastic and good, but the disadvantage is also obvious that the wear resistance is not very good.
To make up for the shortcomings of natural rubber, it is necessary to use other synthetic rubbers to achieve better overall performance, such as adding BR to make the sole wear better.
Outsole technology: Non-Marking, which is the most common, meaning no trace, the sole will not leave traces to stain the floor when rubbing on the floor.
It can be tested by rubbing the sole on white paper. adiWEAR, which is the meaning of super-abrasive materials, the standard DIN friction loss of sole rubber is less than 80 cubic millimeters, and the DIN friction loss of super-abrasive rubber is within 40 cubic millimeters.
Generally, the super sole wear-resistant rubber is not used for the whole sole, but for the parts with large friction such as heel, forefoot, etc., and other places use ordinary rubber.
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