Stylish Warmth That Moves With You. An essential, refined. The Whitney™ III Mid delivers winter warmth in a sleek, versatile shape built to move with you. UPPER: Waterproof nylon upper with synthetic overlays. Nylon collar and tongue (CW 010, 125, 630) felt collar and tongue (CW 253, 052). Fur trim detail on CW 630. Heel pull tab. Microfleece lining. Waterproof bootie construction. Laces are not waterproof LINING: Fleece FOOTBED: PU like EVA MIDSOLE: Rubber OUTSOLE: Molded Rubber