EVALUATION OF THE EFFECTS OF ARTIFICIAL AGING ON THE UPPER LEATHER OF MILITARY COMBAT BOOTS

The upper leathers used in military combat boots must have more advanced performance characteristics given the different conditions of use to which they are exposed, especially compared to leathers used in garments and saddlery. Unlike casual footwear, combat boots are exposed to extreme climatic conditions and mechanical stress. Therefore, the upper leather must meet the highest performance standards to ensure durability and functionality under these conditions. In this study, the most important physical and mechanical properties such as tensile strength, elongation at break, tear load, distension and strength of surface, upper-sole adhesion resistance and color change of upper leathers for combat boots are examined before and after artificial aging. These properties are crucial for ensuring comfort and protection in demanding environments. The results show that artificial aging leads to a deterioration of certain mechanical properties, such as surface distension and upper-sole adhesion resistance. At the same time, there is no significant deformation in other critical properties. This suggests that upper leathers used in combat boots can maintain sufficient durability for prolonged use in harsh environments. Nevertheless, further material development is required to optimize specific properties for military use. This study provides valuable insights into the development and selection of combat boot leathers, guiding future innovations towards materials that are more resistant to prolonged extreme climatic conditions and intense mechanical wear.