review for soft cozy slippers NOT for plush chenille slippers

Soft cozy slippers, I ordered a medium,  fit size size 81/2. They are way too big, feels like a mis- size to me. They slip off my foot and are difficult to walk in. I washed and dried in dryer hoping to shrink them, but they did not shrink. This was not first time ordering this product, so I was surprised at the sizing. Keeping for granddaughter when she visits, she has a larger foot.