Crocs Unisex Classic Holiday Lined Clogs Fuzzy Slippers Multi Color Size13 US MenHand wash or spot clean with mild soap and cold water. After cleaning, all styles should be air dried only. Exposure to extreme heat, sun, dishwashers, washing machines, or hot cars can cause the shoes to shrink or warp.Sole material: Ethylene Vinyl AcetateSole materi Outer material: Ethylene Vinyl Acetate (EVA)