It’s cheap, and at 500ml, it’s smaller size and slender bottle design makes it easy for my kids to grab on to. They require a little extra “oomph” to open, so be aware of that if you’re giving them to littles or you have arthritis/carpal tunnel/etc. It’s not the crinkly flimsy plastic so you don’t have to worry about it near collapsing on you as you drink. Tastes great too, unlike the weird tap water flavour. It’s clean.