زجاجة ماء Summit بغطاء شفاط

The straw lid really does keep the water cold for hours, even when I left it in my car on a warm afternoon. Took me a second to get used to the locking mechanism, but now I appreciate that it's actually leak-proof.

I filled it with ice water before a long hike, and hours later there were still ice cubes floating in it. The straw lid is easy to sip from on the move, and I love that it doesn't leak in my bag even when it tips over.

Left this in the car on a 90-degree day and the water was still icy-cold five hours later, the double-wall insulation is no joke. The straw lid seals tight when I flip the nozzle closed, so it survived a tumble in my bag without a single drip. Exactly what I needed for long hikes.