Treat the lids like they're your firstborn
We have loads of Brumates and they really are decent quality overall. Well made, proper rubber bottoms, no "sharp-edge" lip when you're drinking without a lid, class leading heat retention and the screw-on type leakproof lids 100% work. The lids do have a habit of getting jammed in the cups (whether through expansion or accidental misthreading) they are easy enough to get off once you get the knack. Plus you tend to learn pretty quickly how to avoid getting them jammed in the first place. HOWEVER... if you break your lid or it becomes worn out (this happens a lot - we have a stack of lids in various states of uselessness - cracked, crazed, fogged, dropped, sealing ring loose etc.) you literally have zero chance of ever getting a replacement. BevLock lids are NEVER in stock at BruMate.com (I've given up after months of waiting) and you can't buy them anywhere else. Plus some lids - including for current models like the 32oz "Nav" mug - aren't even listed. This problem is even worse when you are a non-USA customer. Really great product let down massively by crappy after sales. No doubt they just want you to buy another whole mug/tumbler instead of a replacement lid, which I absolutely refuse to do on principle. Companies like these who use "saving the planet" as a sales tactic make an absolute mockery of themselves with nonsense like this. It's a shame because the products themselves are decent and would otherwise last a long time.