Spark is part of DesignerShoes.com's Fashion Fun collection. Spark is a low heel casual boot. Toe Warmers is known for comfort and design features like waterproof and water resistant microdry outers, pile lining, removable comfort inserts, speed lacing, tpr outsole. Toe Warmers's women's shoe size run is typically medium, wide, double wide and triple wide widths. sizes from 6 to 13.This is a casual boot. Ladies mid high boot. MATERIALS: Water resistant microdry fabric upper, faux fur lining, tpr outsole.