Faux Fur Zip Up Boot with Air-Cooled Memory Foam. Stay warm all chilly season in feet-loving comfort with Skechers Relaxed Fit®: Easy Going - Cool Zip! This ankle boot features a suede upper with faux fur lining, side zip closure and a Skechers Air-Cooled Memory Foam® cushioned insole.. Skechers Air-Cooled Memory Foam® cushioned comfort insole Relaxed Fit® for a roomy comfort fit at toe and forefoot Treated with 3M® Scotchgard® to resist water and stains.