MATERIALS: Recycled plastic knit uppers to help sustain the environment; An ultra soft microfleece lining offers comfort and warmth in colder environments A quick cinch bungee closure creates a more secure fit around the foot and the slip on style offers a quick and easy way to get footwear on and off TRACTION: Non marking rubber outsoles leave no trace or imprints while indoors; The grippy rubber outsole makes this slipper a great choice both indoors and outdoors FIT: KEEN Original Fit gives generous space for toes to spread out CARE TIPS: KEEN recommends you gently brush with a soft damp sponge to remove loose dirt; Treat stains right away with a gentle cleaner; Air dry away from heat