PURPOSE: To obtain the subject fiber product having safety to the human body, showing antimicrobial properties and moisture retention of excellent permanence by providing a fiber product composed of natural, regenerated or synthetic fiber with a mixture comprising chitosan and zinc oxide.

CONSTITUTION: A fiber product composed of natural, regenerated or synthetic fiber is impregnated preferably separately with a deacetylated chitin (chitosan) and finely granulated (≤1.0μm) zinc oxide and a complex of both the components is formed on the fiber product to give an antimicrobial fiber product showing excellent antimicrobial properties, moisture retention and ultraviolet light screening properties without damaging the human body and organisms. The content of the complex (mixture) is 0.02-15wt.% based on the fiber. The degree of deacetylation of the deacetylated chitin is preferably ≥50%.