A flexible lace-up boot temperature-rated to -25º Fahrenheit features a waterproof leather upper and plush UGGpure™ lining for cozy comfort. UGGpure is a textile made entirely from wool but engineered to feel and wear like genuine shearling. An exclusive repeating lug pattern on the outsole maximizes surface contact to enhance traction. Waterproof: protects against rain, puddles and slush to keep feet dry in wet conditions 3/4" platform (size 8.5) 11 1/2" shaft; 17 1/2" calf circumference. Wide calf Lace-up style Removable insole Temperature rated to -25°F/-32°C Leather and textile upper/UGGpure wool and textile faux-fur lining/rubber sole Never worn