Thermos - Icon Solent Navy Travel Tumbler (470ml), Reusable Insulated Stainless Steel Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 7hr Hot/22hr Cold

I ordered two Thermos travel mugs from the same seller, identical except for being different colours so that my husband and I can tell them apart. We are really disappointed to find out that the lids are not interchangeable. This means that we need to mark all the pieces of each individual lid in a separate way so that they always go together. If the wrong lid is used, it doesn't screw in properly and it leaks. They may be great mugs, but this is a really irritating problem. I would return them but the return pages don't seem to work for this product. Very disappointed.