Women's Ryka Astonish Winter Boots Built for active days and changing weather, this athletic bootie combines supportive cushioning with water-repellent protection. The nylon and faux leather upper features RYKÄREPEL treatment to help repel water and mud, while the toggle closure, webbing lace keeper, and ghillie loops create a secure fit. RYKÄ Q TECH is designed around a woman’s foot shape with a narrower heel, roomier toe area, and contoured cushioning for added stability. An anti-odor anatomical insole supports the arch and heel, while ACTIVfoam EVA cushioning and a molded rubber outsole provide soft comfort and underfoot support.