Review on Stanley Classic Trigger Action Travel Mug - 12, 16, 20 oz – Hot & Cold Thermos – Double Wall Vacuum Insulated Tumbler for Coffee, Tea, and Drinks – Stainless-Steel, BPA Free by Brandon Reid

I hate doing this because it really is my favorite coffee mug. It never leaks, keeps you warm for hours, durable. Except for one very important detail. I bought the first one at the hardware store. A few weeks later, the button popped out, exposing the spring. Looks like a press fit. I glued it back on and it worked for about a week before it came loose again. However, I liked the design and functionality so much that I ordered another one from Amazon. Same problem in less than two weeks. In these photos my replacement from Amazon and this third mug is about 3 months old. Exactly the same error spot. Stanley needs to fix this problem before it becomes so common that he ends this product. And again MY FAVORITE MUG! But this lack is terrible. All 3 times it didn't work, the cup stood upright on the table or in the hand. If it happened in my soft lunch bag or backpack full of spare winter work clothes, things would really suck. PLEASE FIX THIS!