All Nalgene bottles are made with a revolutionary resin powered by new recycling technology that transforms plastic destined for landfills into high-performance BPA/BPS-free bottles. This material is derived from 50% waste plastic (using ISCC certified mass balance), further offsetting the use of fossil fuels and lowering greenhouse gas emissions.FeaturesBPA/BPS Free - So you can drink water that's safe and tastes great.Built to Last - Their durable goods are made to last a lifetime.Dishwasher Safe - Safe to put in the dishwasher and easy to clean.Leak-Proof Guarantee - Continuous, straight shouldered semi-buttress threads keep the bottle sealed tight.Lightweight - Engineered to count for when weight matters most.Recycled Material - Made from material derived from 50% waste plastic (using ISCC certified mass balance), further offsetting the use of fossil fuels and lowering greenhouse gas emissions.