Large knitted cotton cover including natural rubber hot water bottle. Weave is our homage to traditional hand loom tapestry works from northern Europe and America. The fluffy terry structure cover diffuses and holds the temperature of water longer. The stretchy rib neck allows for easy water bottle removal. Cover is machine washable at 40°C/100°F. Cover: 100% organic cotton. Bottle: 100% natural rubber. Dimensions: 22 cm x 38 cm. Volume: 2 liter.