Summit vattenflaska med sugrörslock

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.

I’ve been using this bottle daily for two weeks and the double-walled insulation actually keeps my water ice-cold through an entire workday, which is exactly what I needed. The straw lid seals tight when I flip the nozzle closed, so it’s survived being tossed in my bag without a single leak.