The Patio Stack of Chairs Cover/Barstool Cover is part of our premium StormBlock Hillside collection. The pinnacle or strength, elegance and all-weather protection, our StormBlock Hillside covers are beautifully designed with an elegant black and tan weave pattern (with tan piping) that will complement your patio dcor. The StormBlock Hillside collection is constructed from our most durable and reliable 1200 denier polyester. Waterproof by itself, this material is then treated with StormBlock, a hydrophobic coating that makes our covers 100% waterproof, weatherproof, stain-resistant and UV-resistant. Our integrated 4-point strap and buckle system makes it easy to secure your cover in windy weather conditions, and a built-in handle makes covers easy to remove, move and store. Includes a 7-year warranty.