Shaw Air Plush padding is the breathable moisture barrier style of the St. Jude Padding Collection. This highly durable and comfortable cushion prevents moisture or spills from penetrating up to 24 hours. In addition to this it allows naturally occurred moisture to evaporate. This padding can adds comfort to your carpet flooring anywhere in your home, including basements, stairs and slab foundations. St. Jude Air Plush padding is 7/16" thick and lifetime cushion warranty. In addition to this, Air Plush adds 10 years additional warranty to any new Shaw Residential Carpet or Tuftex Carpet warranties. Each padding roll covers 30 square yards or 270 square feet and it is sold by yard.