Nalgene Sustain Water Bottle

The narrow-mouth design is excellent for older toddlers transitioning away from sippy cups, as it provides a more controlled flow. However, because it lacks a built-in straw or spill-proof valve, it is best suited for children who have mastered drinking from an open container.

The Sustain line is crafted from 50% certified recycled material, which diverts plastic waste from landfills. It is BPA, BPS, and phthalate-free, ensuring no harmful chemicals leach into your child's water.

Yes, the bottle is top-rack dishwasher safe. The durable construction is designed to withstand high heat without warping or degrading.

Yes, the narrow opening is designed to minimize spills and splashes, but it does not accommodate standard ice cubes. You will need to use crushed ice or simply fill the bottle with pre-chilled water.

The bottle features a leak-proof loop-top cap that creates a reliable seal when tightened properly. As long as the cap is screwed on securely, it is safe to carry in a bag without worrying about leaks.