Research of the wear resistance of athletic autumn clothing packages for mountain tourism

In mountain tourism conditions, clothing is simultaneously exposed to low temperatures, wind, precipitation, and a complex of mechanical loads (tension, bending, twisting, abrasion), which are cyclical in nature and are unevenly distributed over the product zones. The paper proposes a method for selecting clothing material packages (shell, insulation, and lining) for mountain tourists, taking into account a combination of external operating factors (temperature, humidity, wet cooling and freezing, wind and abrasive load) and internal factors (level of heat production, sweating, dynamic movements, and local pressures). The method is based on the zoning of clothing structural elements according to the types of operational loads and the use of a multi-criteria selection matrix that includes experimentally determined indicators: residual deformation under cyclic loading, the rheological characteristics of insulation materials under perpendicular compression in dry and moist conditions, and the fatigue resistance of material packages under combined effects of tension, torsion, and abrasion. The obtained results show that moisture and subsequent exposure to climatic conditions significantly change the deformation properties of insulation materials: natural materials exhibit an increase in rigidity, while synthetic insulation materials maintain more stable performance characteristics. It has been established that packages with synthetic insulation based on Thinsulate have minimal residual deformation in the elbow area and increased resistance to fatigue wear, which justifies their rational use in clothing for mountain tourism.

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