Well, I wanted a tight thermos and which takes warm my morning tea during my 2 hours of transportation, it's great! With its Small lock button, I do not see the risk of inadvertently open when it is shaken in my backpack (which also shoulder bag, mug so happens very often horizontal to vertical). Guard so warm that I am obliged to add cold water to be able to drink my tea before arriving at work. Cleaning practice, perfect composure, I highly recommend it! Its only drawback (minimal) traces of lipstick are difficult to remove the cover (whose material is still very pleasant to the touch).
