Look no further for the perfect ankle-height boot to wear when the ground is covered in ice and snow. The best-selling winter duck chukka by SPERRY combines molded Wave-Siping™ for enhanced traction with a waterproof rubber shell and Thinsulate lining for added warmth. Details Waterproof rubber shell Microfleece-lined with 200g Thinsulate for added warmth Non-marking rubber lug outsole with Signature Sperry molded Wave-Siping™ for enhanced traction