It Wraps Around Your Body Parts For Even Pressure Distribution While Providing A Stable Surface To Stand And Sit On.The Layered Air Cell Mat Is Supportive, Soft, Comforting And Durable.Memory Foam Padding Also Decreases The Number Of Stretches And Postural Changes. Salutary Effects May Translate Into More Efficient Movement And Body Posture.Made With Non-Toxic, Environment-Friendly Plasticizers Reduces Pvc Material And Does Not Use Any Formaldehyde Or Heavy Metals In Its Production.