Stay warm and look great doing it in the Dani Mid with side zip. This wonderful boot is waterproof and features a Scotchgard(R)-treated nylon upper that resists stains. It's built with special heat-retaining insoles to keep the warmth in. Nylon upper with faux shearling lining and Scotchgard(TM) treatment for water and salt resistance Age - Adult Care Instruction - Spot Clean Insole Description - Vaporex(R) heat-retaining insole system for extra insulation and cushion. EVA spacer to customize fit Insole Material - Open Cell Outsole Description - Flexible rubber sole provides responsive cushioned comfort with every step Outsole Material - Rubber Product Closures - Side zip Size Description - M = Medium (B) N = Narrow (AA) W = Wide (D) 2E = X-wide (2E) 4E = XX-wide (4E) Size Fit Information - True to Size Waterproof - Water Resistant Heel Height - 1 Upper Feature - Scotchgard(TM) Use - Walking Technologies Double Insoles:With the Propet EV (extra volume) insole system, customized fit and comfort is easy. Remove the bottom insole to provide a little extra volume or remove both to accommodate custom orthotics. Vaporex:For additional warmth in cold weather boots and footwear, we have designed our Vaporex(R) insole, which retains heat by using a foil backing and insulating materials to keep feet warm in the most inclement weather. Scotchgard:Shoes featuring Scotchgard's protective treatment means these styles are water repellent and resist stains. Medicare Pending:These styles are pending A5500 Medicare approval.