The NeoAir™ Pump Sack delivers three uses for one affordable price. Pack your 20" NeoAir™ mattress and other items into its taped and durable body, and it’s a classic stuff sack. When it’s time to strike camp, take the contents out, wave the lightweight sack around, and it fills itself with air. Now, connect it to your mattress nozzle and squeeze. With ease, it delivers up to 40 liters of air at a time. Lastly, inflate your mattress while it's still in the sack and it becomes a lightweight, comfortable seat. Imported. Dimensions: 27"L x 13"W. Weight: 2.7 oz.