1) Where exactly should I place this cushion against my car seatback?
Rest the widest part of the cushion flat against the lower section of your seatback, so the built in curve sits comfortably in the small of your lower spine.
2) Does this back pillow help stop slumping or slouching during daily commutes?
Yes, its contoured shape promotes an upright posture, keeping your spine naturally aligned and stopping lower back muscle fatigue during traffic.
3) Will this lumbar cushion work on office desk chairs as well?
Yes, it is fully universal. The long adjustable straps let you secure it onto office chairs, gaming setups, or home dining seats.
4) How firm is the internal foam core?
It balances support and comfort. It gives enough to match your unique spinal shape while remaining firm enough to keep you from sinking back.
5) Is the cover material removable for washing?
Yes, it has a rear facing zipper. You can easily remove the breathable outer cover and wash it to keep your car interior fresh.