Dry it with the lid off. As most reusable water bottles are leakproof, leaving them to dry with the lid on will likely trap humidity and odours inside.

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.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.

The lip, for me, is well sized. If it’s too large, you risk spilling water all over you clothes; too small and it’s not a comfortable fit for the mouth. Chilly’s is just right. I also find that, while some steel bottles can leave a slight lingering metallic flavour, these ones don’t. I like the textured feel of the bottle, which makes it a little less slippery than some steel options and prevents it feeling too cold or hot to the touch. Water stays hot for a long time – though I’m not sure about the 12 hours claim – and remains cold throughout the day; ideal if you’re on a long walk or a hike. We also love that it's so easy to keep clean – designed with only two parts – that both can be put in the dishwasher.They are heavier and bulkier than plastic bottles, so not ideal for really young kids, but are better for the environment than plastic bottles. Brands such as Camelbak and Chilly's make stainless steel water bottles which are very popular. You can also buy very simple sippy cups with a spout. This type of cup is aimed at babies and toddlers. One of the bestselling water bottles on the market, the Sistema Twist ‘n’ Sip has a very simple design and is made from soft BPA-free plastic. The soft plastic means it's less likely to break when it's bashed around in school and nursery bags.

We've tested 18 reusable bottles from brands such as Bobble, Dopper, Chilly's and S'well to find the best options whether you're hiking, commuting or heading to the gym. Does the water bottle appear to be leakproof? Some water bottles are designed with special leakproof valves (actually using it, however, is the only way to get proof that it really doesn't leak!). 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. 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. The bottles are made with a perfectly sized drinking hole to drop these cubes inside and flavour the water – hence the name, Waterdrop.

Love shopping?

Buying a water bottle for your children seems easy, but there are so many on the market, it can be difficult to choose! What features should you be looking for in the ideal bottle for your kids to take to school or nursery? Looks wise I can’t complain either. The Hydro Flask features a compact design with a powdered coating and a choice of nine colours. My favourite was the rain colour, a pale blue. The bottom is slightly indented in the middle for a stable base and after a month of using it, I can confirm it’s durable and keeps water ice cold.