This cushion combines seatheight lift and lumbar support to improve comfort, posture, and driving safety. Key benefits Improves vision and safety: Adds a few inches of height to the seat to improve your field of view and driving angle for safer, more confident driving. Reduces pressure and fatigue: quality memory foam inner core is soft yet resilient and evenly disperses pressure across the buttocks to relieve fatigue during long drives or extended sitting. Supports the lower back: Can be used as lumbar support to reduce strain from prolonged sitting and help protect your spinal health. Keeps you cool and comfortable: Advanced cooling fabric efficiently dissipates heat to maintain a comfortable, nonsultry sitting experience. What makes it effective Material: quality memory foam inner core for balanced softness and support. Function: Dualpurpose design—seatheight cushion and lumbar support in one product. Performance: Provides several inches of lift while distributing pressure evenly to reduce discomfort and fatigue. Comfort fabric: Cooling outer material helps manage heat for extended comfort. Practical use scenarios Daily driving: Raise your seating position a few inches to improve road visibility for shorter drivers or when using taller vehicles. Long road trips: Use as a seat cushion to reduce buttock fatigue and maintain comfort over hours of driving. Extended sitting at work: Place behind your lower back for lumbar support during long periods of desk work or remote meetings. Notes Designed for use on vehicle seats and other chairs where extra height or lumbar support is needed. Simple to place and use—serves as either a seat cushion or a lumbar pad depending on your needs.