마블 서밋 물병

I was skeptical about how well it would keep things cold, but after three hours outside in the sun, my water was still ice-cold. The double wall insulation definitely works, and the lid screws on securely without any leaks. Perfect for my daily commute.

The straw lid seals tight enough to toss in my gym bag without any worry. Ice water was still cold hours later, which is exactly what I needed.

I’ve been using this bottle at my desk all week and the double wall insulation really keeps my water cold for hours. The straw lid is easy to use and hasn’t leaked once.