Nitrile gloves are made from a synthetic polymer composed of three monomers: acrylonitrile, butadiene and a carboxylic acid. The polymer properties are dependent on variations in composition. The term “nitrile” is used as a description because many of the distinguishing features of these polymers are due to the monomer acrylonitrile. The monomer imparts permeation resistance, allowing the material to withstand exposure to a wide variety of solvents and chemicals. It also determines the softness of the product and permits nitrile to be made with either a high or low modulus.