Summit Vandflaske med sugerør

The straw lid really does lock tight—I tossed this into my gym bag full of wet clothes and not a drop leaked. The vacuum insulation kept my water ice-cold through a two-hour workout, which was a pleasant surprise.

Took this on a long hike in 90-degree heat, and the water was still ice-cold six hours later—the double-walled insulation really does the job. The straw lid’s close position stayed totally leak-proof bouncing around in my bag, which is exactly what I needed.

The straw lid locks securely with a simple twist, and I haven't had a single leak in my bag. The double-wall insulation keeps my water ice-cold through a full workday, even in a hot car.