Men's The North Face Chilkat V 400 Waterproof TNF - Black/Asphalt Grey Updated for more underfoot comfort and a lighter weight, the Men’s Chilkat V 400 Waterproof Boots still boast our warmest package of toasty Heatseeker™ Eco insulation for comfort on cold winter adventures. DETAILS: Upper | Made with a combination of full-grain waterproof leather and suede Elevated rustproof metal hardware Waterproof, seam-sealed construction 400 g Heatseeker™ Eco insulation for exceptional warmth Webbing loop at heel for easy on/off Heel clip for snowshoe compatibility D-ring at bottom of tongue for gaiter attachment Sole Unit | Compression-molded EVA midsole for long-lasting cushioning Streamlined, waterproof, molded-TPU shell for increased flexibility Surface Control™ rubber outsole optimized for winter conditions Has a secure heel fit