Reddit reviews Car Seat Booster Cushion with Strap - Extra Firm for Added Height, Thick 2 Inch Foam Auto Wedge, Coccyx Support for Back, For Drivers, Office Chairs, Wheelchairs, Breathable, Washable Cover

NO MORE ACHING BACK - U-shaped portable orthopedic wedge tilts pelvis to improve posture and relieve pressure on lower spine during long automotive rides and in wheelchairs and other chairs. Ergonomic coccyx cut-out reduces tailbone pain and sciatica during travel.VERY FIRM NO-FLATTEN DESIGN - Made from ventilated, breathable mesh material with a molded Clever foam core, it will not lose its shape like other brands. NOTE: the car seat cushion is deliberately very firm, and many people find it firmer than expected. The car seat cushion will arrive folded but will flatten out with first use. Many people find it firmer than expectedEXTRA SUPPORTIVE - Our cushion effectively raises your car seat height, particularly at the back, thus providing the perfect amount of lumbar support whilst making your seat flat. Your best auto booster pad. Removable gray cover is hand washable.STAYS IN PLACE - Adjustable strap (maximum length 55 inches) with buckle goes around the back of car or truck seat to keep cushion stable and secure. NOTE: please be sure to tighten strap to avoid cushion sliding around on larger seats. Comes with a handy carry bag for easy portability.JUST THE RIGHT WIDTH - Delivers ample support. Narrow enough to fit into the center of most car seats without buckling or bunching. For sizes please see picture. NOTE: initially the car cushion may have a strong smell due to transportation, but this will dissipate after 24 hours.