The best boot money can buy. Made with Henderson�s exclusive Gold Core® neoprene, this boot will keep you warmer, fit you more comfortably, and keep smelling great even with heavy use. The Gold Zipper Boots feature vulcanized heel and toe caps and are available in sizes up to 16. If you've never had "Gold," nows the time! Our most luxurious and comfortable boot. Like wearing soft cushy slippers.