Sustainability in your hands. Nalgene is proud to be the first to market with a new resin powered by next-generation recycling technology that transforms plastic destined for landfills into high-performance BPA/BPS-free bottles. The new Nalgene Narrow Mouth Sustain Water Bottle - 32oz is made from 50% certified recycled content further offsetting the use of fossil fuels and lowering greenhouse gas emissions.