The Muck Boots Arctic Weekend with a black quilt pattern, as the name suggests, are perfect for those cold winter outings. With Neoprene insulation rated to minus 20 degrees, a great non-slip rubber sole and excellent flexibility they make great weekend winter boots. 100% Waterproof Fully lined with 4mm neoprene for flexibility Fleece lining for warmth Lightweight EVA midsole for added comfort Mid-height with pull-tabs for easy on and off Outsole designed for light duty use on firmer surfaces Estimated boot height 29cm/ 11.6" Estimated max calf circumference 37cm/ 15.1" Measurements based on a size 5, variations may occur across sizes Half sizes order up US Women's Sizing Muck Boots Arctic Weekend Womens Insulated Waterproof Slip Resistant Winter Boots in Black Quilt