Nalgene Wide Mouth Sustain Bottle w/OTF Cap Slate 32oz. This material is derived from 50percent waste plastic (using ISCC certified mass balance) further offsetting the use of fossil fuels and lowering greenhouse gas emissions. Specifications for Nalgene Wide Mouth Sustain Water Bottle 32 oz: Manufacturer: Nalgene Volume: 32 oz Package Contents: Nalgene Wide Mouth Sustain Water Bottle 32 oz Nalgene 1791-2006: Wide Mouth Sustain Bottle w/OTF Cap Slate 32oz