According to the EPA http://www.epa.gov/ttn/atw/hlthef/vinylchl.html and other organizations http://www.vinylchloridefyi.com/vinyl_chloride_health_effects.html , Vinyl is one of the most toxic substances in widespread use today. Vinyl is typically the only substrate available for signs, banners, awnings and other marketing materials. There is now a non-toxic alternative called Eco-Flexx. Learn more at Eco-flexx.com.