One of the great advantages of this Hydro Flask reusable water bottle is that you’re given the functionality of a thermos flask in the tiny package of a normal water bottle. It ultimately gives you control over your drinks, whatever the weather, and is available in a selection of cheery, bright colours.

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This bottle might not have the bells and whistles of other models, but it’s got plenty else to recommend it. This was the best of the canteen-style bottles we tested and is ideal if you’re looking for a compact, sleek, lightweight water bottle. As it’s made from single-wall brushed aluminium, it doesn’t offer insulation but is impressively lightweight (180g when empty) and sleekly stylish in a utilitarian kind of way. There are a lot of different options available - from stainless steel styles that keep your water cool, to glass designs and smart bottles that even filter your drink too. Fill up the plastic or metal water bottle with still or sparkling water, top with a flavoured pod, such as cassis, tangerine or cola, then sip through the straw, which aerates the water with flavoured air bubbles.Remove the black box lid and you find the bottle nestled inside with two choices of lid in black or white. It’s not ideally designed when considered purely as a drinking vessel: the filtration levels mean there is a lot of drag when you drink through the bottle’s straw and filling it is a pain when the filter soaks up water and is so bulky – you have to leave room for it so the bottle doesn’t overflow. The only bottle we tested that comes with a user manual, it can filter bacteria, parasites, chemicals, pesticides and the microplastics we’re all trying to reduce by using a reusable water bottle in the first place. It also passes the shake test without any leaks, which is essential if you’re carrying this around in cases with expensive tech. The scary statistic that by 2050 there could be more bits of plastic in the ocean than fish perfectly sums up the urgent U-turn needed when it comes to our consumption of single-use plastics.

2 Litre Bottle - Etsy UK 2 Litre Bottle - Etsy UK

If you want something unique to you, check out our best personalised water bottles, with options from adding photos to light up models.Modern insulated water bottles are genius bits of kit, designed to offer all the insulating functionality of a traditional thermos in a smaller, budget-friendly package. This great-looking, good-value flask is flat, so it can be carried in a car door or wide pocket as well as a bag (or simply in your hand, thanks to the grippy silicone sleeve and a carry handle that's sturdy enough to use when the bottle is full). A sports cap can be bought separately for the bottle, which is a good alternative for activities or grabbing while driving.