These are something that I have been working on for some time. I made this one for Aunt Jean and she loved it. I have since made some changes to the design and they are now insulated with fleece to keep the water cool a bit longer and absorb the water as the bottle sweats. I'm going to be listing some non embroidered ones for sale soon.
This style is another one I am working on. It closes on the side with velcro and will fit a 20 - 24 ounce water bottle.