Review on 🏋️ Utopia Home 2-Pack 28-Ounce Fitness Sports Classic Protein Mixer Shaker Bottle - Convenient Clear/Black Design for Effortless Blending by Christopher Buck

Disclaimer: I bought these bottles to store breast milk but not for their intended purpose. These bottles will not leak when held on their side. This probably contributes to how difficult it is to open or unscrew the lid. If I were drinking from a bottle I would be dissatisfied with how difficult it is to open and close the lid. In addition, the lid is so difficult to unscrew that the handle strip sometimes slips out of the groove. My biggest complaint is that the spout tends to drip after pouring and the liquid runs back into the spout as you pour. I understand this is probably not a problem if the bottles are used as intended, but it annoys me when trying to fill baby bottles.