NEAGLORY Popular Quencher FlowState Stainless Steel Vacuum Insulated Tumbler with Lid and Straw for Water, Iced Tea or Coffee, Smoothie and More,Black

It has some bad smell on the cup. I returned it.

Hard to close lid, hurts my fingers.

This tumbler holds 40 oz or 1.13 kg of liquids. It's lightweight and has a nice minimalist design. It is insulated as it keeps my cold drinks cold for hrs. Less so if you keep the straw in it their is still air opening around the straw. I would prefer if it had a clip somewhere so i could attach the straw when not using. It comes with one straw. Would have liked two straws and a cleaner for them.When you have the straw out and the swivel closed it is pretty leak proof but i wouldn't run to the tennis courts with it in a backpack. Nice rubber base for the desk and pretty secure for a car cup holder.The tumbler comes with a lifetime guarantee.

I'm actually shocked by how poor quality this entire product is. The tumbler itself feels like very cheap metal, and the handle is barely attached at all. The lid is far from leak-proof and the plastic it is made from is, again, incredibly cheap. The part that really blew me away, though, is the straw. The straw is the cheapest plastic I've ever seen used for a straw. The edges on both ends are rough (and uncomfortable to drink from) and the straw feels like it will shatter if you look at it wrong. It's also much too long for the tumbler.I'd give this product a very hard pass. It isn't worth it at all.