I take a bought water bottle, soft plastic type as I find I can hold it easier. Most people I know don't take water but hydration is important when running ... yes I find it annoying but I also NEED it because I die without
When I do sprints I stay within a certain area and leave the bottle at the 'end', just you get stuck looking at the same scenery.
I have considered buying a hydration belt. Ones I've looked at are:
https://www.sportsshoes.com/product/...-pack-~-ss20/?
&
https://www.gym-stuff.co.uk/products...water-bottles?
or look at Amazon, there are so many
https://www.amazon.co.uk/s?k=hydration+belt
Look at the handheld water bottle options for running too maybe
https://www.amazon.co.uk/s?k=handheld+bottle