ERGONOMIC FIRMER SUPPORTUnique open weave Air mesh material used in our back support pillow makes it extremely hygienic and durable this 3D air mesh lumbar pillow with resilient filling contours to your body curve without deformation, perfect for side, back or stomach sleepers. MULTIFUNCTIONAl & VERSERTAILthe total thickness could be adjusted by adding a 1" detachable roundel to help improve spine posture, reduce strained back musclesLightweight, compact and foldable for easy carrying. Can be used as a leisure pillow, used as a car pillow, sofa pillow. BREATHABLE COOL MATERIAL: With its 3D ventilation our breathable back pillow for sleep allows constant, refreshing airflow inside; the soft top surface won't get hot or soggy like memory foam, offering cozy and comfortable sleeping environment for a good sleep. WIDELY APPLICATION: Design for side sleeper, back sleeper, stomach sleeper, Long time driver, desk workers, and even Pregnant Women. Lay on it, you will fall into sleeping easily and have a peaceful sleeping.