This knit holder is knit to fit a ~0.8L (26oz) metal water bottle measuring 28cm in height x 8.5cm in width. The holder itself should fit snugly and will stretch over time - if adapting the pattern for alternate water bottle sizes, aim to knit a holder measuring slightly less than the measurements of your bottle.

The hot water bottle cover is knit to fit a ~2L hot water bottle measuring 33cm in height x 20cm in width.