ProAdvantage Disposable Shoe Covers are made with spunbonded polypropylene, they are non-conductive and have sewn seams. The non-skid soles offer improved floor traction. The elastic opening is easy to take on and off and gives a snug fit that doesn't fall off as you walk or work. Available in a box of 100 and a case of 3 boxes (300). ProAdvantage Disposable Blue Shoe Covers are available in two sizes, regular and x-large.