With the tread on the bottom, Pillow Paws Single-Imprint Terries Slipper Socks gives warmth, comfort and peace of mind with the tread on the bottom. It is the most wearable patient footwear products in the industry due to high quality and comfort levels it provides. Unlike others, the slip-resistant tread is printed on the smooth side of the terrycloth fabric. Thus allowing the ink to "puff" and create a full, robust tread design. Enhanced safety and comfort is due to the ink not being lost in the terry loops. Machine washable. Available in pairs only.