Need for littles, but breaks down and gets yucky quickly
As others have pointed out, the plastic breaks down quickly (my son doesn’t chew either), and traps food easily, making it necessary to clean frequently (but it’s difficult as it doesn’t come apart) and replace often. For this reason, I’m thankful it’s inexpensive! We’ve had EcoTankas for all four boys for years, love them and never need to replace the bottles, but lids have never been great. Big boys use steel lids now, but the preschool still needs this one to prevent spills. I just order 2 at a time so when one breaks or gets too worn out, I can quickly replace it.