I have used and depended on my Contigo  Coffee  mug(s);for years now, (Stainless Steel Travel Mug with Autoseal) I have had extras at both of our homes so I always have one to go. Well…….my family and other(s); have either lost, misplaced, or claimed as their own, my Travel Mugs. Other Travel Mugs, may be good, but can’t compare to Contigo.  I am rebuilding my  Travel mug(s) assortment……all Contigo with Autoseal.