A cosy and bright cover for a standard sized hot water bottle (22cm x 36cm) knit in mitered diamonds. The diamonds are knit onto each other so there is only 1 seam at the bottom. Triangles fill the gaps at the top and the bottom. Stitches are then picked up at the top and knit in the round to complete the cover.

Knit using your 8 ply scraps as each diamond only needs about 4-5g of yarn.