Protect what you need to by storing in Nalgene air-tight, leak-proof storage containers. Stackable for convenient storage. The wide mouth opening makes it easy to scoop what you need when you need it. Shatter resistant and dishwasher safe. Now made from Sustain, which is a material derived from 50% plastic waste (using ISCC certified mass balance). Each bottle is created from resin powered by next generation recycling technology that transforms plastic destined for landfills into high-performance bottles.