Our 3/8 Heavy Duty Rubber Rolls are very eco-friendly as they are made from recycled truck tires. Every year, millions of tires are ground up and repurposed as flooring, underlayment, mulch, and much more. All of our rubber rolls are very safe and virtually latex free. The material used to make our flooring is thoroughly cleaned to ensure that any hazardous materials are not present in your floor. If you would like further testing results for our flooring, please feel free to reach out to one of our Flooring Heroes via chat, phone, or email and they would be more than happy to provide you with it.