Abstract
Socks are included in the group of everyday (indispensable) items of clothing. They should absolutely be comfortable, long-lasting and affordable. In this research were analyzed three types of socks that differ in raw material composition (mixture of Co, PA and Lycra fibers) and structure (loop density). All socks are made of knitwear in right-left interlacing. The basic characteristics of knitwear from feet, heels and toes were checked: longitudinal mass of yarn, density, loop length, surface mass, thickness. The samples were then subjected to measurements of air permeability and resistance to friction (abrasion) using methods according to ISO and EN ISO standards. After the friction process, the air permeability decreased thanks to the felting, i.e. rubbing the fibers in the structure of the knitwear, making it denser (regardless of the fact that protruding fibers fall out, they create piles of them). The visual assessment of appearance in the sock sections also changed with increasing number of friction cycles
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