Extremely comfortable, lightweight and surprisingly compact, the full-size Aeros™ Ultralight Deluxe inflatable pillow uses a construction inspired by the Air Sprung Cells™ of our sleeping mats. It features a super soft 20D stretch-knit polyester exterior and a silent, TPU air bladder for support and comfort.- We have updated the bestselling Aeros™ Ultralight Deluxe Pillow for 2019 to add compatibility with our unique Pillow Lock™ system.Features:- Inflate pillow in just a few breaths and fine-tune easily with the multi-functional valve- 20D stretch-polyester knit is very soft and comfortable- High-strength TPU air bladder is soft, silent and supportive.- RF-welded construction for strength and durability.Specifications:- Weight: 4.6 oz ≈ One D battery- Fabric: Pillow Lock™-compatible 20D polyester fabric