I’m unsure if the plastic lid had become misshapen somehow, or perhaps I just got unlucky and landed a bad one. Unfortunately, during a commute home where I took a tube followed by the train, it did dampen the bottom of my rucksack.

That’s why it’s shot to fame online and is now the bane of every parent’s lives, as kids beg to have one to fit in at school.We can’t vouch for whether it affects the antimicrobial performance, though it doesn’t impact the cap’s seal. I tried to sip the coffee two hours after pouring and burnt myself, much to the amusement of my colleagues (at least that shows the Thermos, which is said to retain heat for seven hours, works). I left them for hours at a time to test how insulated they really were, both for cold and hot water, and I deep-dived into the materials each is made from to check for toxic materials. The cork band is light, antibacterial, biodegradable and has super thermal qualities, while the lid is splash-proof and really easy to clean.

The Chilly’s Series 2 is that kind of bottle, with countless colorway combinations that put the fun in function. I clean it regularly with dish soap so it’s not too abrasive and I don’t wear lipstick or any lip products so I believe it’s a design flaw as all my other bottles have been amazing. It doesn’t claim to be leak-proof but I do think that should be expected these days, especially for a water bottle designed to be used on the go.We noticed that the collar and loop are a slightly different shade compared to the bottle, though it’s not surprising as they’re different materials. The 'drink hole' is difficult to open and because it is a screw top, the whole top sometimes becomes detached. Part of an exclusive collaboration with Liberty, this Chilly’s Series 2 coffee cup combines the brand’s intelligent design ethos with Liberty’s Summer Sprigs floral for an unprecedented drinking experience. Because the series 2 has a couple extra components (thanks to its new closing lid mechanism) this brings me on to its first downfall; cleaning.

Sho advises that the Straw Lid is not 100 per cent leak proof, though I haven’t found that to be an issue. Whilst they are very good at preventing leaks, we cannot guarantee they are fully leakproof at very high temperatures or if they are fully inverted or shaken. In a departure from the traditional Chilly’s style, this brand new water bottle has a stainless steel straw with a sporty flip lid and carry loop, designed for use on the go. They’re essentially tiny granulate cubes made from natural plant and fruit extracts which are low in calories and free from sugar, artificial flavours and sweeteners. Luckily it can just be chucked into the dishwasher, although the trigger lid occasionally requires a little more intense scrubbing.It does something else completely - it uses fragrance pods around the mouthpiece to trick your brain into thinking the water you are drinking actually tastes like what you are smelling. As the lid simply twists to create a gap from which to drink, I worried that it could get knocked in my bag, but it stood strong. S’wheat is the most environmentally friendly reusable water bottle, because it is made from biodegradable plant-based materials, bamboo and wheat straw, which would otherwise have been agricultural waste.

There are tonnes of options on the market – including many epic reusable coffee cups which we didn't get the chance to try – but after scoring on leak protection, design and how well it kept my drink insulated over a period of a few weeks, we're certain that you won't be disappointed by these.It comes with a matte protective sleeve that stops you from burning your hands, and is made from ceramic which is really durable (and doesn't make your drink taste funny). Get your questions about the Chilly's Series 2 Coffee Cup answered from our team and the Pro Community right here on the page. Why we love it: The Stojo cup is the best collapsable variation we tried, perfect if you hate carrying your reusable coffee cup around all day after taking the last sip of flat white. But it’s a sturdy, well-insulated bottle that – unlike the gigantic Stanley Quencher – is adaptable for just about every situation. Our expert Natalie Byrne from Go Outdoors has also helped to answer frequently asked questions, like how to choose an environmentally friendly water bottle, how to clean one, and how long you can keep water in one.