Stanley 1913 Master Unbreakable Thermal Bottle, 1.4 QT Heavy-Gauge Stainless Steel with QuadVac™ Insulation and Cup Lid

I was skeptical of the claim so I tested it. Filled it Monday morning with ice and water, left it in my truck all week through 85-degree days. Friday afternoon there were still ice cubes. This bottle is absurd.

Dropped it off a ladder onto gravel. Not a mark. The QuadVac insulation is the real deal — my water stays glacier-cold on job sites. The cup lid is handy for sharing.

Performance is unmatched. Cold for literally days, rugged construction, the cup lid works well. It is heavy though, which matters if you're hiking. That's the tradeoff for heavy-gauge steel, and I accept it.

Kept water cold for my entire four-day trip in the stand. Never opened it to warm water once. The 1.4 QT size is perfect for long days out.

Insulation is phenomenal, no complaints there. Just be aware 1.4 QT is bigger and heavier than it looks in photos. It doesn't fit my car's cup holder at all. Works great at home and on the tailgate.

I'm 58 and have used thermoses since the 80s. Nothing has ever come close to this. Ice for days, genuinely unbreakable, and the included cup is a thoughtful touch for my wife and me on road trips. At half off it's a no-brainer.

Bought it mainly for hot drinks during ice fishing. Coffee was still steaming 12 hours later. It's bulky in a backpack but the performance justifies it.

The bottle kept drinks cold fine for a month, then the cup lid gasket started leaking when tipped. Customer service was responsive but I expected more at this price point even discounted.

My dog knocked it off the tailgate onto pavement. Zero damage. Still holds ice like day one.

I've owned four brands of insulated bottles and this one ended the search. The QuadVac insulation isn't marketing fluff — ice genuinely lasts nearly a week, and I've verified it twice. Construction feels heirloom quality, like something I'll pass down. The cup lid means I never need a separate mug. Yes, it's heavy, but heavy means durable in this case. Plus I stacked the sale with SAVE15 and paid less than the cheap bottles cost.