Sea To Summit Aeros Pillow Ultralight RegularPerfect for gram counters, the Aeros inflatable backpacking pillow has a soft 20D stretch polyester exterior and a silent, contoured TPU air bladder for support and comfort. Inflation, adjustment, and deflation take seconds, thanks to the patent pending multi function mini valve. Features Inflate pillow in just a couple of breaths and fine tune easily with the multi functional valve Stretch knit 20D polyester knit is very soft and comfortable Curved