SmartSeat Dining Chair Cover and Protector - Metro Black Waterproof: The only truly waterproof fabric cover. Imitators are not as good. CAUTION. Read their reviews. Made from soft-to-the-touch, comfortable, and toxin-free material available in Midnight Navy Blue or Sandstone Tan Easy-to-use adjustable straps work with chairs of different shapes and sizes Does not slip or slide around and protects your seat from spills and stains Fits chair seats ranging from 18 to 23 inches wide, even chairs with side arms