I adore the Yeti Rambler, but I couldn’t put it higher on this list because it’s so heavy. The lightest 532 ml version weighs 462g empty. For context, the S’wheat weighs almost half that, at 250g, and Chilly’s Series 2 bottles weigh 390g. Half a kilo may still not sound very heavy, but it sure will take its toll on weaker wrists. It comes in two different colors and in 21- and 24-ounce sizes. If you are looking for a larger water bottle, the brand offers it in the Hydro Flask Wide Mouth Trail bottles, which come in 32- and 40-ounce sizes. Keep in mind that Hydro Flask recommends that you hand wash all of its water bottles. UK consumers go through an estimated 14 billion plastic drinks bottles per year, according to Defra, but single-use plastic is falling out of favour thanks to efforts from David Attenborough and Greta Thunberg. More people are turning to reusable water bottles and in return, bottles are getting smarter. The best water bottles these days are insulated, leak-proof, filtered and BPA free. Jon Hamilton, Beyond BPA: Court Battle Reveals A Shift In Debate Over Plastic Safety, NPR, February 16, 2015

Though human studies on the benefits of hydrogen water are limited, several small trials have had promising results. May Provide Antioxidant BenefitsMaterial: There are three main materials used to make reusable water bottles: plastic, glass and stainless steel. Plastic water bottles are usually lightweight and durable, but they can sometimes absorb the flavor of tea or coffee. If cleaned properly, glass water bottles won’t impart any flavor into your water, but they can be delicate or heavy. Stainless steel is a lightweight alternative and is often used for insulated bottles that are great for keeping hot beverages hot and cold beverages cold; they're often not dishwasher-safe. I’m a long time fan of Chilly’s Original Bottle and I’ll admit I was dismissive when the Series 2 bottles first came out. They’re objectively less attractive than the classic design of the Series 1, with a more rugged, squat appearance and a loop handle. But I’m here to tell you I’m a convert. It’s thought that the body can’t effectively absorb the hydrogen in plain water, as it’s bound to oxygen. I’m often a little wary of water bottles with straws because I’ve previously found they become rather unhygienic. This water bottle uses antimicrobial drinking surfaces and a stainless steel telescopic straw, which comes with its own cleaning brush. It’s just as well, since it can’t go in the dishwasher. Warm soapy water and a bottle brush will clean all sorts of water bottles including metal, glass and plastic. I recommend that you use fragrance-free soap, as bottles made of silicone and plastic can take on the scent of the soap. For straws, use a pipe cleaner. If a straw is removable, soak the straw at least once a week,” says Byrne.

Hydrogen water is marketed to decrease inflammation, boost athletic performance, and even slow your aging process. Metabolic syndrome is a condition characterized by high blood sugar, increased triglyceride levels, high cholesterol, and excess belly fat. Stainless steel is a reasonable option for a sustainable water bottle as it’s 100 per cent recyclable. Plastic uses oil and water in the production and releases carbon dioxide, a greenhouse gas, but can be more environmentally friendly if it is recycled. If you’re buying a reusable water bottle with the intention of becoming more environmentally friendly, it doesn’t get more sustainable than the S’wheat bottle. The S’wheat is a reusable plant-based water bottle made from wheat straw and bamboo. The wheat straw is the stalk part of cereal plants which remains after they’ve been harvested. Usually, wheat straw would be used as biofuel, animal feed or burnt in the open - causing pollutant emissions. Any BPA free water bottle, like all the ones above, are safe. Exposure to the industrial chemical BPA is believed to cause health problems, as I have explained in more detail in the introduction, but thankfully manufacturers are extremely cautious to avoid it these days. Glass and stainless steel are both naturally BPA free. If you’re particularly safety-conscious with your water, consider buying a filtered water bottle.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. The company also plants a tree with every sale, takes plastic out of the oceans and donates a percentage of its profit to protect sea life.

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. It comes in either 500ml or a litre.Additionally, hydrogen tablets meant to be added to plain or carbonated water are sold online and in health food stores. BPA stands for Bisphenol A, an industrial chemical compound used in the manufacturing of strong plastics. Some research suggests BPA can leak into food and drink and cause health problems. “When looking for a bottle, look for non-toxic materials. Stainless steel is one of the most eco-friendly materials for a water bottle. Not only is it safe, but it is very durable and infinitely recyclable,” says Natalie Byrne, content marketing manager at Go Outdoors. It is important to think about what you will be using the bottle for, as well as the materials used and if they are environmentally friendly,” says Byrne. She notes that the main reason people choose to buy a reusable water bottle is to cut down on single-use plastic and help the environment, so it makes sense to choose a bottle that is environmentally friendly, like the plant-based S’wheat bottle. Johanna R. Rochester, Ashley L. Bolden, Bisphenol S and F: A Systematic Review and Comparison of the Hormonal Activity of Bisphenol A Substitutes, Environmental Health Perspectives, July 1, 2015 Hydro Flask makes beautifully designed gear from drinking bottles and coffee cups to Soft Coolers and the Outdoor Kitchen dining collection. Hydro Flask’s bold and bright range of products and interchangeable accessories are perfect for commuting, camping, climbing - or whatever outdoor activity floats your boat.

Of all the bottles I tried, the Yeti Rambler had the best insulation which is why I’ve made it the best for hot water. The Chug Cap easily screws off which is ideal for drinking tea and coffee. Unfortunately the lid doesn’t screw directly onto the body - you need the Chug Cap between. Most companies say they can keep water cold for 24 hours and hot for 12. We wouldn’t recommend keeping water in your bottles any longer than that as it can start to take on a stale taste. That said, you can safely store tap water for up to six months, according to Healthline. Which are the safest water bottles to buy? More studies are needed to confirm if drinking hydrogen decreases the effects of oxidative stress in both healthy people and those with chronic conditions. May Benefit Those With Metabolic Syndrome

Stay hydrated with our pick of the best water bottles whether you’re at home, going out for a run or driving

The best water bottles available you can buy in 2023 1. Hydro Flask Wide Mouth Flex Cap: Best large insulated water bottle