Whole sizes only; for 1/2 sizes, order next size down. A durable ripstop upper and high-traction rubber tread bring both indoor and outdoor practicality to a water-resistant slipper lined with PrimaLoft® insulation. The collapsible heel makes it easy to slide on for morning coffee or a dash outside to check the mail. Collapsible heel Removable insole PrimaLoft ThermoBall Eco synthetic insulation Synthetic and textile upper/textile faux fur lining/rubber sole Men's Shoes