Advice on drinks bottles

Hi @Globster

It's difficult to know what sort of water bottle to suggest without knowing a bit more about your hand functioning, pincer grip etc. However, I thought if I posted a couple of suggestions for you to take a look at you could appraise the suggestions to help narrow down the sort of product that may be useful for you.

I've focused on mainstream sports products rather products designed specially for the disability market, as frankly I think it is important to encourage inclusive design and these products tend to be 'funkier' than some of the 'disability aids'.  

Chunky drinking vessels are often easier to hold. Stanley do a vacuum mug that allows fluid to come out when a button on the side of the lid is depressed
 https://www.amazon.co.uk/Stanley-0-47Litre-Classic-Handed-Vacuum/dp/B00G94I3KA/ref=sr_1_1?ie=UTF8&qid=1530781228&sr=8-1&keywords=stanley+one+handed
This obviously requires a certain level of dexterity. This product it probably really good for people that have one hand with good grip function but not so good for those with impaired grip in both hands.

Camelbak do bottle that has a valve that shouldn't spill if it's knocked over, but also has a 'dial' to make it completely watertight if you want to chuck it in your bag etc https://www.sportsshoes.com/product/cam75/camelbak-quick-grip-chill-620ml-handheld-water-bottle-~-ss18/?msclkid=db5d75af77251e1470072e92962607d0&utm_source=bing&utm_medium=cpc&utm_campaign=UK | All Products - [BS]&utm_term=4587299952484185&utm_content=All Products&gclid=COimr5XPh9wCFUKShQodEjUMRA&gclsrc=ds It comes in a nice pouch that you can put your hand through to make the bottle harder to drop.

Maybe an alternative is to not bother with a bottle and go for a small hydration pack with a bite valve, for example  http://www.gooutdoors.co.uk/osprey-duro-handheld-p402169

One Green Bottle is a company which sells a range of bottles which you can match with different caps and pouches/grips to suit individual needs https://www.onegreenbottle.com/ 

Screw caps can sometimes be made easier to open by putting elastic bands round them to improve grip or if the cap has a 'loop' on the top put an implement (such as a spoon) through the loop to get more leverage. 

A bottle can be made more 'grippy' by rapping bicycle handlebar tape around it.

Is any of this of any help? If not give me a bit more feedback about what you need and I can search a bit more.

Best Wishes
Jean