Glerups wool slipper. SHOE WITH NATURAL RUBBER SOLE - BLACK - GREY Our slippers are made of 100% pure, natural wool in the colour grey with a sole of natural rubber in the colour black. We started making slippers over 30 years ago - in fact, our founder Nanny Glerup made the first pair of slippers as a declaration of love to her husband Ove. All slippers are produced in our own factory and in our special glerups wool mix, which makes the slippers itch-free and durable. They are designed and produced with respect for animal, people and nature. Choose the shoe model with a natural rubber sole if you are the type of person who would like to go outside with your slippers and want the "shoe feeling" in your slippers.