SITSMART RELIEF - SOFT FABRIC COVERING FOR EVERYDAY USE: SitSmart Relief style is covered with brushed polyester fabric and filled with a layer of pressure-relieving foam padding for extra comfort. NATURAL, SAFE AND EFFECTIVE BACK PAIN RELIEF: SitSmart is a safe and effective way to improve posture that prevents back pain while you sit. SitSmart automatically positions your body in correct posture for all-day comfort. TILTS THE PELVIS UPRIGHT TO ENGAGE CORE MUSCLES: SitSmart encourages your spine to move, "float" and adjust while sitting, Its patented design works by tilting your hips upright and comfortably ?floating? your spine over the seat, you feel refreshed even after hours of sitting. PORTABLE, EASY FOR TRAVEL, WORKS in any seat?office, car, home?or anywhere you sit. NOTE *CAUTION ?Changing your sitting posture can cause temporary discomfort for the first time. Your body may need time to adjust and relax into the new posture that your BackJoy provides. Please reference the manual for additional information. WARRANTY SERVICE ?1 year Grin Brands India warranty on manufacturing defects.