If you think of the human body as a very complex and rather delicate machine, the need for certain types of protection becomes more obvious. For instance, protecting humans from heat, cold or wetness is the role that is assumed by clothing, by outerwear and by shoes. It is important to keep the basic needs of humans in mind when developing new products. For the most part, everything that they buy has to provide protection of some kind, make something easier or provide comfort. In some cases, products or parts of products are meant to do all of the above.
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