Believe it or not, there are no bandanas for sale in Argentina! You can get the silk handkerchiefs that ladies wear but not cotton bandanas. I've been checking the web and all the bandanas measure from 20 to 22 inches. Is this size OK? because I heard an expert say that he likes them to be 30 x 30". I am going to have a seamstress make a dozen and I'd like to get the right size. Can anyone help?