
Essentially an adult sippy cup, the Stanley quencher flowstate cups (read: emotional support water bottles) are the unlikely product to have taken the internet and beyond by storm.
With 224.8 million views and counting on TikTok (the reusable water bottles are dominating the niche #WaterTok trend) and even garnering Adele’s seal of approval, it’s no surprise that the entire range has sold out three times since landing in the UK – and in less than two days each time. Now, the cult cups have finally been restocked in two new colourways for autumn.
Despite being Gen Z’s favourite accessory, the tumbler brand actually has its roots all the way back in 1913 as a go-to for adventurers and hikers – but its reached a new notoriety thanks to the pastel-hued cups.
Its viral quencher H2.0 flowstate cup boasts a 1.2 capacity and can keep your liquid cold for up to 11 hours, or two full days when iced. Complete with a reusable straw and full-cover cup, it has an ergonomic handle for easy carrying and a base that fits into a car holder.
Better still, it’s crafted from 90 per cent recycled stainless steel for more sustainable sipping. Coming in a range of aesthetically pleasing colours, from eucalyptus sage and rose quartz to the new light blue fog and green citron, the pretty cups have ascended to cult status – but their main appeal is hydration (it is a water bottle after all).
We all know hydration is key for good skin, energy levels, temperature levels and overall good health – but most people’s daily water consumption is well below par. With the NHS recommending between 1.5 and 2.5l of water a day, Stanley’s 1.2l cup will certainly help you on your way.
How we tested
If you’ve been considering buying into the hype, we naturally got our hands on one of the new colourways to test the cup’s credentials out. Considering the quality, usefulness and value-for-money of the water bottle, here’s our verdict on Stanley quencher’s viral tumblr.
Stanley Quencher H2.0 flowstate tumblr, 1.2l

With its 1.2l capacity, the reusable tumblr promises to keep your thirst quenched while ensuring your cold drinks stay chilled for up to 11 hours (or two days when iced), thanks to Stanley’s vacuum insulation. We tested these claims with an ice-cold smoothie which stayed deliciously chilled for all-day sipping – as did our white wine at the park (another underrated benefit of the cup).
There’s no denying that it’s heavy – and the sheer size of the thing is slightly impractical for lugging round a city on the commute, taking up more space than our lunch, laptop and book combined. But when working from home, we appreciated the large capacity for helping boost our water intake.
The grip ergonomic handle adds to its ease-of-use while the narrow base that fits some (but not all) car cup-holders is a nice touch. Plus, the entire bottle is dishwasher-safe. Crafted from 90 per cent recycled stainless steel, it’s not only durable, it’s sustainable, too, giving you peace of mind while sipping.
Designed with an advanced flowstate lid, you can rotate the cover to three positions – described as a splash-resistant straw opening, a drink opening and a full-cover top for transportation. Though it’s easy to switch between these positions, the straw is not fully splashproof while the full-cover top failed to pass the leakproof test when tipped on its side or upside down. This completely rules the quencher out for carrying loose in a bag, which is quite a big drawback considering the price.
Beyond its practical use, the range of colours available certainly makes hydration a more stylish affair. From pink rose quartz, baby blue chambray, sleek charcoal black and muted sage-green eucalyptus to off-white cream, dusty light purple orchid and new for autumn 2023, fog and citron (both in stock now), Stanley has targeted a whole new generation of customers with these Insta-worthy pastel-hued cups.
Buy now £44.99, Stanley1913.com
The verdict: Stanley quencher H2.0 flowstate tumblr
Stanley’s quencher H2.0 is not just a pretty face. As well as the aesthetically pleasing pastel colourways, its 1.2l capacity easily boosted our daily water intake. Keeping drinks chilled all-day-long, its vacuum insulation is an impressive feature, as is the handy car cup and ergonomic handle.
Where the Stanley falls short is in its portability. While the large size isn’t a problem for lounging at home, the cup’s heftiness makes it impractical for transporting while out and about – plus, the leaky lid is a blantantly obvious flaw considering the quencher’s cost.
Though we’ll continue reaching for the Stanley when working from home, we won’t be abandoning our old reusable water bottle for the commute to the office just quite yet.
While the full cup range has sold out again in the UK, the brand new fog and citron colourways have just dropped – and the quencher cups are still available to buy via Amazon (from £49.26, Amazon.co.uk), but at a slightly higher price (and the cost varies colour to colour).
Want more recommendations? We’ve rounded up the best reusable water bottles

