STURDY SUPPORTIVE AND EFFECTIVE- Ergonomic Streamlining molded with premium quality memory foam for optimal lumbar support and never flattens out, a proper firmness memory foam compresses to take the shape of your back and curve and provide comfort and relief numbness of your back ERGONOMIC DESIGN SPECIFICALLY TARGETS BACK PAIN - Due to our universal contoured structure, our back support cushions can be placed anywhere along the back of a chair for neck, upper, middle, thoracic, or lower back and spine pain relief. Use this backrest as a posture corrector to help with alignment and relieve pressure while driving your car or sitting on your office chair at work. Ideal for a gamer, truck driver, elderly men or women. ADJUSTABLE STRAPS - The adjustable straps can be secured tightly to the back of the seat so your cushion stays in the desired position and does not fall or slip down the desk chair. REMOVABLE AND WASHABLE , BREATHABLE 3D MESH COVER - Allows airflow through the cushion to keep your back cool and dry for the best experience. Our posture cushion can also be used on the couch, wheelchair, auto vehicle, office chair, or as a portable travel companion while flying on an airplane. IMPORTANT - If your back cushion has a slight odor, put it in the dryer on low heat for 30-40 mins with a scented fabric softener sheet. REPLACEMENT GUARANTEE - If anything goes wrong with your lumbar cushion, we've got your back...literally!