EASY TO FILL: These plastic bottles have wide mouth openings and have screw caps. They also come with a pour spout and a bottle funnel so you can easily fill each hidden flask with your favorite ...

Hydro Flask is a more recent brand, (they were founded in 2009 ... options | Colors: 38 | Material: Stainless steel exterior ...

But others are plastic, glass, or non-insulated steel ... mind when the liquid doesn’t stay cold all day). I’m a Hydro Flask devotee. I’ve owned my 24-ounce bottle for four years now ...