What role does 'steel' listed in the skirt's material play in the clothing?

Let us start with the composition figure of 4%. The outer fabric of HOKUS POKUS's Metal Banding Skirt_Pink (메탈 밴딩 스커트_핑크) consists of 50% Cotton, 46% Rayon, and 4% Steel^[1]. The entire fabric is not made of iron; rather, it is a fabric woven by blending a tiny amount of fine metallic steel yarn among the soft cotton and rayon fiber structures^[2].

Generally, metallic fibers have the property of retaining a bent shape, so when woven together with other yarns, they maintain natural fine wrinkles on the fabric surface and create a dry, slightly crisp texture that does not cling to the skin. This skirt also utilizes metallic yarn to hold subtle wrinkles on the fabric surface, thereby producing a refreshing, dry feel that does not wrap around the body^[3].

hmmm, the reason an unfamiliar material like steel was blended into the skirt seems to be a tailoring choice to keep the texture of naturally rumpled wrinkles intact without coming undone, rather than to show off a shiny metallic quality.