Ozark Trail 22 oz Double Wall Vacuum Sealed Stainless Steel Tumbler, Black

So all my family members have competitor brand tumblers and they love them. I could never bring myself to pay that kind of money for just a 'cup' so I held off and if I needed to borrow my husband's I would. Recently I was browsing on here and came across this brand of tumbler. I have owned a couple of the Ozark Trail products in the past - a folding chair and a couple of camping items I believe- and always thought they were very good value for money and quite well made so based on this and a few reviews I read, I purchased this tumbler. The tumbler arrived this morning and I did an experiment. I took my husband's (almost new) 30 oz competitor tumbler and my new 30 oz Ozark Trail and half filled them both with ice. I used the exact same amount and placed both tumblers on my patio table in direct sunshine - almost 90 degrees. We kept checking back and after about 2 hours it became very obvious we had a clear winner and NOT the one you think.... The Ozark Trail insulated much better and finally after 4 hours in hot sunshine, still had nice big chunks of ice. The competitor tumbler's ice had melted. We were both shocked but very happy because now we know we do not have to pay the terribly inflated price of the well known 'designer' brands for insulated tumblers. Great job Ozark Trail!!!