Cole Haan Studiogrand Slip-On Boots Dove Gray Waterproof Suede 8B Waterproof suede uppers. Lined in warm faux shearling and padded sock lining. Toggles instead of laces for easy on/off. Full rubber outsole with innovative Grand.ØS technology for increased cushioning, greater flexibility and reduced weight. The toothy rubber soles provide anti-slip protection and are also outfitted with innovative Grand.ØS technology.