The Propet Lumi Tall Lace Is A Boot Made For Enduring The Winter Weather. Built With A Scotchgard Treated Suede And Knit Upper with A Soft Pile Lining. Has Sealtex Waterproof Properties To Keep Your Feet Dry. During Cold Temperatures, Your Feet Will Stay Warm Due To The Vaporex Heat-retaining, Double-insole System For Extra Insulation, Cushion And Fit Customization And Thinsulate Lining. Has A Rubber Outsole Designed For Positive Traction And Slip Resistance.