LIGHTWEIGHT AND VERSATILE At 1.8 oz, the lightweight Air Pump Sack is portable and convenient, saving space in your pack and weight on your back. Rugged 30D ripstop fabric and seams sealed with Bemis waterproof tape, make the Air Pump Sack a great pack liner or lightweight dry bag by day. When you’re ready to turn in for the evening, connect the valve to the Pongo pad, inflate and you’ll be on cloud nine in seconds. TIME SAVER Quickly inflate your Pongo sleeping pad in less than five pumps. Spend more time enjoying campfire nights and less time setting up camp. EASY TO USE Shake out the Air Pump Sack and give it a puff of air. Whether you roll the fabric up or twist the opening closed, squeeze air into your pad or pillow without huffing and puffing your breath away. Save your breath. The lightweight and packable Air Pump Sack allows you to inflate your Pongo sleeping pad and Puffin pillow in half the time.