I only have to fill it up twice for a 12 hour shift and it stays cold!

Bought two 40 oz bottles for my kids. They absolutely love it. Keeps water cold well over 24 hours!

Bottles keep liquids cold - add ice and it keeps cold for days!

Amazing size for a great price. Especially for two different lids.

This is my second ThermoFlask and I am very pleased.

I love my new ThermoFlasks! Just the right size and with changeable lids. The best!

Love it, you guys will not regret buying it. Holds enough water for the day

My daughter loves your products. She was mad when someone tried to steal her blue one.

This is made of quality material, keeps my water cold, and it’s easy to clean.

Highly recommend the ThermoFlask with Straw Lid Top. My new favorite