Heavy Duty Vinyl Closet Shelf Liner for Wire Racks or Shelving - for Kitchen Pantry or Cabinet Storage, Clear, 12 Inches x 25 Feet, Non-Adhesive, Waterproof, Stain-Resistant, Cut-to-Size - Walmart.com
Duck Solid Grip EasyLiner 20-in x 12-ft Gray Shelf Liner in the Shelf Liners department at Lowes.com