Summit 水瓶附吸管蓋

The straw lid is genuinely leak-proof—I tossed it sideways in my work bag with the nozzle closed and not a drop escaped. Double-walled insulation kept my water cold through a full afternoon of errands, which is exactly what I needed.

Ice cubes were still clinking around in my bottle after a full day of yard work in the sun, which is exactly what I hoped for from the double-walled insulation. The straw lid clicks shut tight enough that I tossed it in my bag without a single leak.

Took this on a hot afternoon hike and the water stayed ice-cold for hours thanks to the double-walled insulation. The straw lid seals tight when I flip the nozzle closed, so no leaks in my bag — exactly what I needed.