“ordered for my 5 yr old for school. He loves the whistle and the compass on the paracord handle. We did have an issue with the clasp breaking for whatever reason but that was replaced after a quick email to support. The bumper/guard on the bottom is fantastic and is already earned its money. My kids have gone thru multiple bottles over the years just due to normal wear and tear. So far this bottle is still in new condition with the same amount of drops as the old ones. One issue we are seeing is in the lid with little bits of mold growth between the seal. Not sure if this is a known issue but just something to keep an eye on and make sure to keep clean. I will let you know if it gets worse. Frost buddy is a great company with great products and I highly recommend picking up a bottle, universal koozie, wine tumbler, quite literally anything you need to keep a drink cold or hot.”