Even more important than the choice of colors: the choice of materials. Soft, breathable materials such as spandex will allow you to be more comfortable in your clothes, and will be perfect for an intensive sports session. By opting for cotton, you will have both comfort and resistance. The other advantage of this material is that it absorbs moisture, so you will not be bothered by the feeling of moisture created by perspiration. Finally, there are now so-called "intelligent" materials that can regulate body temperature, dry in record time, or act as a barrier against low temperatures, a luxury for outdoor sports in winter The running.