The body curves inwards around three quarters of the way up so you can wrap the rest of the hand around the body as you press the lid. I’d suggest it really needs to be a little higher, though I do have small hands.

What should the water bottle be made from? Plastic is lighter but stainless steel is better for the environment.

Subtotal

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.

The lid or cap should be able to be closed firmly to prevent a spill, but not so firmly that it makes it hard for children to open by themselves. A water bottle is usually made from plastic, stainless steel or silicone. Plastic should always be BPA-free, meaning that it contains no harmful chemicals.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.