Memory foam wedge seat cushion designed for car seats, office chairs, and wheelchairs. Provides breathable, supportive seating that helps improve posture and reduce pressure on the lower back and tailbone. Key benefits Comfortable support: density memory sponge offers soft, breathable support with moderate firmness that conforms to your body while maintaining shape. Wedge design for better posture: Thin front and thicker back increase seat height and improve viewing angle and sitting alignment. Stable, breathable cover: Stereoscopic stretch mesh cover improves airflow to keep the surface dry; nonslip bottom prevents the cushion from sliding on the seat. Easy care: Removable cushion cover can be washed by hand or in a washing machine for routine cleaning. Versatile use: Designed for car front seats, office chairs, and wheelchairs. Specifications Materials: Memory foam and polyester fibre Size: 47 × 42 × 8 cm (18.50 × 16.53 × 3.14 in) Colors: Black, Gray Package includes: 1 car seat cushion Practical use scenarios Commuting and driving: Add height and comfort to the front seat for clearer sight lines and reduced pressure during drives. Office work: Place on an office chair to improve posture and make long periods of sitting more comfortable. Wheelchair seating: Provides supportive padding and a more stable sitting angle for everyday wheelchair use. Performance notes The memory sponge offers strong support and moderate hardness while resisting deformation. The stretch mesh cover enhances breathability across seasons. The antislip base increases friction with the seat surface to keep the cushion in place. This cushion is a practical accessory to improve seating comfort and posture for vehicle seats, office chairs, and wheelchairs.