Sustainable handkerchiefs made from fine cotton are a great choice. I wish they were more accessible and better promoted to the public. I have been using cotton handkerchiefs for a long time, and you can't compare cotton to the useless and unsustainable paper handkerchiefs that have been treated like with several Chemicals and bleached by manufacturers. Unfortunately, handkerchiefs often get a bad reputation due to several companies trying to profit from reusable tissues.