Final Fit Safety products are made mainly from a sugarcane derivative. After the sugarcane has been processed for the food industry, the gum-like byproduct serves as the core ingredient for many bio-plastics including the foam for our earplugs. Not only are the earplugs biobased. The cords and stems are, as well. The bags are made of corn. (Note: On our metal detectable earplugs, the metal detectable components are not biobased.)