Sports shoes specially adapted for tennis training. Outsole in rubber. Material: synthetic. Synthetic material is a collective name for artificial materials that do not come from animals and nature. Material: textile. Textile is a collective name for textile fibers, ie materials of different types of fabrics. Removable insole, practical and hygienic. Important if you have your own specially designed insole. adidas miCoach helps you measure all the parameters of your workout. After the training, you can then follow up and measure the statistics with yourself or others. With miCoach, training becomes much more fun.