Summit 水瓶附吸管蓋

Took this on a long hike and the water stayed icy for nearly six hours, which was exactly what I needed. The straw lid clicks shut securely so I can toss it in my bag without worrying about leaks.

Finally a lid that doesn't betray me in my bag—the straw flips closed and it stays leak-proof even when tossed around. Ice water from the morning still had a chill at 5pm, which is exactly what I needed on a hot commute.

The double-wall insulation keeps my water cold for a few hours, but I wish it lasted longer into the afternoon. The straw lid is convenient, though it can be a bit tricky to clean thoroughly.