- Made from tough and durable 75D Polyester fabric Super-fast inflate and deflate with our multi-function low profile mini-valve The Air Seat is made from a durable 75 D Polyester top and base The Air Seat Insulated has a 30D Polyester top fabric and a durable 75 D Polyester base and is filled with THERMOLITE insulation Pack down into its own zippered pouch