MATERIALS: Ultra soft microfleece lining offers comfort and warmth in colder environments SUPPORT & COMFORT: Removable KEEN.CRUSH memory foam footbed for ultimate underfoot comfort TRACTION: Non marking rubber outsoles leave no trace or imprints while indoors FIT: Slip on design for easy on and go; An elastic gore panel offers added flexibility in the shoe’s opening CARE TIPS: KEEN recommends you clean upper using mild soap and cold water; Use stiff brush or soft cloth to remove excess dirt; Let shoes air dry away from heat