EVA, (Ethylene-vinyl acetate) is some incredibly versatile stuff. It’s the elasticized polymer foam material used in most footwear to add support, structure, and cushioning. It’s incredibly versatile as it can be molded, dyed, cut, and shaped into just about any configuration. It’s incredibly inexpensive compared to the other materials used in footwear such as leather or rubber, and it’s darn easy to get good at working with it!
But it’s not all roses for this wonder material. EVA doesn’t break-down naturally and so it’s filling landfills across the globe with a product that doesn’t jive with nature. The manufacturing of EVA is a toxic process, and even though EVA scraps and used EVA can be recycled into new EVA – it’s not at all a green process.