If you’re looking for a reliable, extra-large travel mug, the Bubba Straw Envy Vacuum-Insulated Stainless Steel Tumbler might be ... observing how well the thermos kept our coffee hot or cold ...

The cup can get hot in your hands As Thermos has become synonymous with insulated flasks ... Lifeventure’s TiV vacuum flask offers excellent value for money as a budget-friendly option, while ...