Black Patent Brogue Detailing Hiker Boots In versatile black patent, Snail from Carvela earns instant credit for achieving the challenging task of blending style with comfort. Nodding to current trends with its classic brogue styling, its 4cm chunky heel provides a comfortable base for walking, with a functional zip fastening to the side complementing the lace-up design perfectly. This durable boot sports a 29cm ankle circumference and a 13.5cm boot shaft height to put the perfect finish to tried-and-tested jean looks.