Nalgene 32oz Narrow Mouth Sustain Water Bottle - Mocha (Monochrome)The NEW LOOK of sustainability. All Nalgene bottles are now 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.