BJPKPK 40 oz Stainless Steel Insulated Tumbler with Handle, Lid & Straw - Double Wall Vacuum Insulated Cup for Hot & Cold Drinks - Perfect for Coffee, Iced Tea, Smoothies at Home, Office or Travel

When it comes to tumblers, I consider myself a bit of a pro because I love my coffee and drink a lot of water. This one is my all-time favorite and I’ve tried many including the Caus brand (which is my next fave).My main demands involve insulation, proper closure, and ease of drinking. I work in an office coaching others and recording audio for podcasting and narration. I need my beverages that will last with me through the work day! This tumbler does that and has all I want and more for inside of $20. I started with the smaller to see if the other reviews were accurate and loved it so much I just got the 40 oz as my dedicated water tumbler.Things I love about this tumbler:>> Keeps things cool/hot with metal thermos-like inside>> Easy to grip with handle (and fits cup holders when I do take it with me)>> Easy to clean because dishwasher! Also they send extra components and a straw brush in the box as well. Nice!>> Colors that don’t chip and peel! I am a sucker for a good gradient and these colors are stunning in my office but also they don’t chip off like many of my other mugs do.>> Easiky alternate between sipping and straw. For some you have to place a straw in the area to sip and it’s clunky. This has a dedicated area for a straw and a hinged piece that clicks in place to cover the sipping area when you use the straw (and then clicks open when you’re sipping).The versatility and durability of this tumbler are amazing for the price. One work of caution: I wouldn’t tip it upside down. It’s not NASA sealed. The cover is more for insulation and access to your drink, I think. But all I am looking for is some extra time when I invariably knock it over on my desk, so this works great.