Womens Snoozies are lined with snoozies exclusive dyed pom pom Sherpa fleece with an outer super soft fabric. Soft, slip resistant bottom soles and seam-free inner construction provides an irritation-free fit to ensure a luxurious feel around the home, dorm room, day at the spa or a chilly office! Machine washable for easy care. Feet love to relax in Snoozies. They're a cross between a sock and a slipper, having a thick yet durable and soft bottom with extra plush lining. Slip some on to warm and pamper your feet all day long. US Size scale as follows for Womens: Small: 5/6, Medium: 7/8, Large: 9/10, Extra Large: 11/12.