SIZE:49*27*13.5cm Material: Memory Foam Baby's skin-like touch: The molecular structure of the gel is close to that of human skin cells, making it soft and supple, as soft and elastic as baby's skin. When used in summer, it will keep you cool and not stuffy. AN UPGRADE FOR YOUR CHAIR, EVERYWHERE. Stiff? Pregnant? Traveling? Lounging? This back support pillow is THE ONE TO GET for a comfortable cloud of back support; even in WEIRD SHAPED CHAIRS, wheelchair, plane seat, car rides, living room couch, atop their bed wedge, and yes their RECLINER. NO EMBARRASSING SWEAT when you stand up - BREATHABLE REMOVABLE cotton office chair cushion cover keeps air circulating for as long as you sit. WONT FLING YOU ONTO THE FLOOR like those oversized back cushion that provide lumbar and mid back support, but tire your ankles from pushing back into your chair. PROVIDES JUST ENOUGH LUMBAR SUPPORT WITHOUT BEING BULKY ACTUAL ORTHOPAEDIC RELIEF -THIS office chair cushion unique convex shape promotes superior support to ONLY the parts of your back a chair cushion should. FITS THE LOWER BACK IN JUST THE RIGHT AREA