Biting on the straw opens the sealed end so you can drink from it, which takes a bit of getting used to but means the bottle is spill-proof even when the straw is lifted up from its recess – a godsend for klutzes. Remove the black box lid and you find the bottle nestled inside with two choices of lid in black or white. Tough enough for every adventure, our water bottles are leak-proof and durable, making them perfect for drinks on the go. 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.

There are many complications when it comes to recycling, meaning that as little as 20 per cent of the bottle actually gets recycled in the end. A slim shape and secure lid make it suitable to carry in a bag or hold by the carry loop threaded through the lid – although when full it’s quite heavy, so it’s perhaps best kept to hand on your desk. 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. 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. Although heavier than plastic and lacking the insulating properties of aluminium, glass does allow for extra style and eco-credentials and eliminates any issues with water absorbing the taste of the inside of the bottle.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. Solidly built to last, it’s not likely to let you down and suddenly spring a leak, and it won’t shatter or rust. We have metal water bottles as well as classic plastic sports bottles and protein shakers from many reliable brands, while keen runners will appreciate our handheld running water bottles. Slimline and lightweight (coming in at just 104g when empty), this bottle is the perfect size for slipping into a small bag or large pocket when you’re out and about. Instructions recommend you squeeze one bottle's worth of water through the new filter before drinking to wash through any carbon residue.

Our tester bottle survived our leak tests, and the metal version feels like a more viable option for the wear and tear of children. Initially we thought the straw was broken, as the water doesn’t come out in a steady stream, but then realised that the bursts of air were indeed flavoured. 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). The Kanteen’s wide neck can take ice and it’s a good-looking bottle available in seven shades of a ‘Klean Coat’ chip-resistant, powder-coated finish that also offers a sturdy grip. The BPA- and phthalate-free cap screws into nicely engineered screw threads, so you avoid that squeak of metal on metal that sometimes accompanies stainless steel bottles.Although it doesn’t make any specific insulation claims, we find that it keeps water cool throughout a day in the office. It’s clearly designed for your desk or the gym rather than a hike, so that’s unlikely to be a big issue.