There is provided an antimicrobial composition for treating fabric, wherein said antimicrobial composition is a liquid and wherein said antimicrobial composition comprises water and a metal/polymer complex, wherein the pH of said composition is 6.5 or lower； wherein the concentration of said metal/polymer complex is from 0.005% to 0.1% by weight based on the weight of said composition； wherein said metal is selected from copper, silver, gold, tin, zinc, and combinations thereof. Also provided is a method of finishing fabric using an exhaustion process with the composition of the present invention.
