Summit Vattenflaska med sugrörslock

Left it in the car during a hot afternoon and the water was still icy hours later, which is exactly what I wanted. The straw lid seals tight when you flip the nozzle closed, so no worries about leaks in my bag.

The straw lid's twist-to-close mechanism is genuinely leak-proof—I tossed this in my tote sideways and not a drop escaped. Ice cubes were still solid after a full afternoon in the car, which beats every bottle I've owned before.

I’ve had this bottle in my gym bag for two weeks now and the water’s still icy cold after a full afternoon of meetings. The straw lid clicks shut nice and tight with no leaks when I toss it sideways, which is exactly what I needed.