Contigo - 16-Oz. AUTOSEAL West Loop Stainless Travel Mug with Open-Access Lid - Midnight Blue

It keeps my smoothies cold. Even 8 hours later I still have ice chunks. My hot drinks are hot for 4 hours. I love it!

nice auto seal system but my coffee got cold in just a couple hours

We really like the West Loop Contigo Travel Mug. There are lots of varieties out now and the design changed slightly over the years. We love ours so much so, that we've bought a few as gifts. My only complaint is the sip hole was made smaller on my newer model. Wish they wouldn't have done that, but still a good spill proof travel mug that keeps liquids hot/cold for hours!! You won't believe how long! Also, my husband's lid started to leak after several years of use, and the company mailed him a new one!! Can't beat Lifetime Warranty!!!

May not hold claimed amount 16 oz . I like the seal

My husband got one of these as a gift and loved it so much that we have bought several more for gifts. It's perfect to make your coffee at home in the morning and it stays hot all day long.

This is a nice mug. It can keep water warm long enough.

Perfect mug for travel, has a lock mechanism so hot liquids don't spill out, if it falls or gets knocked over.

I take coffee with me to work everyday and i use this mug most days. It keeps my coffee warms for about 3 hours if I heat it first. I like it because I keep it at my desk and because of the auto-seal I can't spill it. The only con I have is the top is flat instead of having a "lip" on it.