QUALITY MATERIALS: Microwool and microsuede uppers pair with natural wool blend lining to create comfortable and durable slippers. "COLORADO" OUTSOLE: Alpine by Dearfoams features a new versatile and lightweight Thermalplastic Rubber "Colorado" outsole that is durable and skid resistant for both indoors and outdoors. ECO-FRIENDLY TECHNOLOGY: The Colorado outsole is sustainably produced using eco-friendly Bloom technology and a thermoplastic rubber blend. Bloom outsoles are made from harvested algae, which is a highly renewable resource and fuels the global clean up effort. REMOVABLE FOOTBED: Removable, shock absorbing, fully contoured insole with arch support for the ultimate comfort all day long. We are excited to offer this "souped-up" version of a slipper that takes foot and planet earth health very seriously. MACHINE WASHABLE: These cozy slippers are easy to clean so you can always have a fresh, clean pair. Gentle machine wash cold and air dry flat. faux shearling