Inflatable Seat Cushion, 36-Cell Design for Air Travel (Black) | Airplane seat cushion for long flights with a built-in palm pump, adjustable firmness, airflow gaps, and a nonslip base

PALM-PRESS INFLATION: Set up a travel seat cushion for airplane trips without inflating by mouth or carrying a pump. Open the built-in pump cover, place it on a firm surface, and press repeatedly with your palm; inflation takes about one minute.
ADJUSTABLE 36-CELL SUPPORT: Interconnected 3D air cells create a flexible, multi-point surface that adapts as you sit and helps spread weight. Inflate to 60%-75%, then press the red release button in small steps to fine-tune firmness.
COOL-TOUCH AIRFLOW: Cool-touch stretch fabric and gaps between the air cells encourage air movement, helping reduce heat buildup and stuffiness during extended sitting. TPU flexes as you shift and keeps its supportive shape through repeated use.
FULL-SIZE NONSLIP COVERAGE: At 16.9 x 16.9 x 2.0 inches, the broad sitting surface fits many seats and supports up to 330 lb. Rubber grip dots across the underside add friction against the chair to help reduce sliding and shifting during use.
PACKABLE FOR TRAVEL: This travel cushion weighs 0.93 lb and rolls into the included drawstring Oxford storage bag after deflation. Packed size is 9.1 x 5.1 x 5.1 inches for convenient storage in luggage between trips.
ONE CUSHION, MANY SEATS: Use it as a stadium seat cushion or add cushioning to train seats, car seats, office chairs, dining chairs, benches, wheelchairs, and outdoor seats. It adds comfort to firm seating during travel, work, and events.
DUAL-VALVE DEFLATION: Firmly pull open the large lower valve to deflate; use the small upper valve for mouth inflation only. Roll out the remaining air, then close the layers. Keep away from sharp objects; spot-clean with a damp cloth.