Bios Hot Water Bottle With Cozy is a durable, large 2-litre capacity hot water bottle that comes with a large opening for easy filling and emptying. Bios Hot Water Bottle With Cozy has a ribbed surface, helping to maintain temperature. Its has a leak proof design and is made from mildew resistant rubber. Bios Hot Water Bottle With Cozy includes a cable knit hot water bottle cozy which wraps perfectly around the bottle and helps hold in the heat longer. Hot water bottle included.