Stay toasty with our gorgeous customisable Hot Water Bottle covers. Lovingly handmade in Northumberland. Fits a standard 2 litre hot water bottle. Designed to look like a mini Onesie with pockets. You can also add ears to match your Onesie design. How very cute! Create a Blanket and Hottie Bundle with a beautifully bespoke Blanket and customisable Hot Water Bottle Cover and we'll treat you to 30% off.