Here is a handy Drink Bottle Holder which is quick and easy to make. This is an excellent item for gift-giving to anyone who enjoys outdoor activities and wants to be able to carry a drink along with them.
This drink holder is made with 8-ply Cotton however, any 4-ply cotton can be used provided the measurements are worked to.
This is explained in the pattern.
The pattern is written in US crochet terminology and requires no sewing except attaching the strap of 4 stitches to the opposite side of the drink holder. This pattern is for a 600 ml drink bottle. The pattern includes instructions to allow you to make the size you desire.