An adhesive composition including predominantly one or two polyamide(s) having units chosen from: at least one unit denoted A having an average number of carbon atoms per nitrogen atom, denoted CA, ranging from 4 to 8.5, advantageously from 4 to 7; at least one unit denoted B having an average number of carbon atoms per nitrogen atom, denoted CB, ranging from 7 to 10, advantageously from 7.5 to 9.5; and at least one unit denoted C having an average number of carbon atoms per nitrogen atom, denoted CC, ranging from 9 to 18, advantageously from 10 to 18, and to the use thereof.