Purpose and key benefits Raises seat height by a few inches to improve driving sightlines and overall visibility, helping you drive more safely and comfortably. Doubles as lumbar support to reduce lowerback strain during long periods of sitting. Memory foam core evenly distributes pressure across the buttocks, relieving fatigue and protecting longterm comfort and health. What makes it effective quality memory foam inner core: soft yet resilient, returns to shape and provides consistent support over extended use. Dualfunction design: can be used as a seat height booster or positioned to support the lumbar region depending on your needs. Advanced cooling fabric cover: efficiently wicks heat and moisture to keep the sitting surface cool and comfortable without feeling sultry. Key attributes Function: seat height increase and lumbar support. Material: quality memory foam inner core with a cooling fabric exterior. Performance: pressure distribution to reduce buttocks fatigue; maintains shape and comfort during long use. Size/fit: provides a few inches of height increase; designed to be used on typical vehicle seats and common seating surfaces. Practical use scenarios 1. Daily commuting: raise your driving position for a clearer field of vision during city or highway driving. 2. Longdistance travel: use as a seat cushion on long trips to reduce buttocks fatigue and add lumbar support for extended comfort. 3. Office or remote work: place behind your lower back or on your chair seat to reduce strain from prolonged sitting. Why customers choose this cushion Solves common discomfort from low seats and poor lumbar support without replacing the seat. Combines pressurerelieving memory foam with a cooling cover for sustained comfort in a range of temperatures. Simple, versatile solution for drivers and people who sit for long periods. Care note: Follow any care instructions on the cover to maintain the cooling fabric and the foam core.