The Tritan Wide Mouth 1L by Nalgene is a durable, versatile water bottle, that is great for cold drinks, but will also allow you to use it for soups, stews, carrying left over food or accessories. The bottle material is BPA free, ensuring that it is free from toxins that are found in some plastics. The wide mouth of the bottle makes this water carrier easy to drink from, & the opening will also fit onto some water filter systems, allowing you to always have access to fresh water where ever you go.