this post was submitted on 19 Jan 2026
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Klean Kanteen or Hydroflask. You'd be looking at a vacuum insulated double wall tumbler flask. They have multiple volume sizes that share features and lids. (Eg, 12/16/20/32/42 oz)
Their replacement parts are pretty spendy on their .com web store (shipping is brutal) but people sell them retail or used on eBay.
The 2-1/4" wide-mouth lids from Nalgene, MSR, Klean Kanteen, Hydro flask and Camelbak usually share the same thread pitch but don't always seal.correctly on the top gasket in all combinations. However there is some brand interoperability but its something you need to test for leaks.
I recommend a silicone sleeve bumper on the bottom to prevent dents.
Another good brand is Yeti but they use all proprietary lids and standards. I think the wall thickness on Yeti is possibly the highest making them super durable. The straw lid is called the Rambler.
If you want it to last a long time, the best finish is always just the brushed polished bare stainless with no paint to scratch or chip. Otherwise start adding stickers over chips and scratches.
i've had really good luck with Klean Kanteen's TKWide line. highly recommend. they're also the only one i know who has any ethical certifications. the others as far as all i know are run ethically, the board of directors promises
The TKWide line are very nice! The lids for these go inside internal threads on the flask, they are a completely proprietary standard that cannot be swapped to other brands.