Review on 🏃 Optimized Synergy Running Water Bottles (6oz/9oz 4-Pack, Pink) by Durioki Cordaro

So far so good! Washed several times, they hold up well, do not tear and do not leak. I bought these specifically for my daughter's lunch box as they are small enough to fit in and we haven't had any issues with leaks. The only minor complaint (for lack of a better word) is that only the tip of the spout rises to open/drain water, which took my daughter a little getting used to and a few moments of frustration as all of her other water bottles are different. However, I think it probably helps keep it from leaking, so overall it's good but needs that kind of tweaking, especially for young kids.