The collaborative Tenue. x Nalgene 1L Sustain is your new everyday water bottle! Nalgene bottles are built to last and known for being a trusty companion to adventurers. All Nalgene bottles are now made with a new recycling technology that transforms plastic destined for landfills into high-performance BPA/BPS-free bottles. This material is derived from 50% waste plastic, further offsetting the use of fossil fuels and lowering greenhouse gas emissions.