A very soft, but strongly felted cover from soft wool by merino sheep for a hot water bottle. The backs are uni coloured.
I use 60 g of wool for the big covers, 40 g of wool for the small covers. The reason being that I want maximum heat coming through without burning you. I experimented a while before arriving at this particular thickness and I find it perfect.
The product comes with a hot water bottle. I use a high quality Natural Rubber Bottle produced in Germany without plastic and without any plastic softeners. There is a rubbery smell at first that will fade with use and time.