The lightweight, compact Sea to Summit Aeros Premium Lumbar Support air cushion comes with brushed, particularly soft 50D polyester knit fabric and a noiseless TPU air bladder. It offers you pleasant comfort and good support. You can easily inflate the air cushion with just a few breaths, and the flat multifunction valve allows you to finely adjust the level of support in a user-friendly way. After use, the cushion can be easily stowed away in its stylish bag.