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How soon will I feel relief?

Many users tell us they notice less pressure on their tailbone and lower back within the first 10–15 minutes of sitting. Individual experiences vary.

I’ve tried other cushions that didn’t work — why is this different?

Most cushions either flatten quickly or only support one area. Postrelix combines high-density foam with a coccyx cut-out and a raised lumbar panel designed to encourage upright sitting. This design helps reduce tailbone and sciatic nerve pressure while keeping hips more level.
Many customers say it’s the first cushion that worked for them after trying others, though results may vary.

Will it flatten out?

Postrelix is made with dense memory foam that’s built to hold its shape longer than basic foam or gel pads. While all cushions compress slightly under weight (that’s normal and how they relieve pressure), customers often report it still feels supportive months after daily use.

Will it work for someone my size/weight?

Postrelix is designed with high-density foam to support a wide range of body types. Like any cushion, it will compress slightly under weight, that’s normal, and part of how it relieves pressure. For users over 250–300 lbs, compression may feel more noticeable over longer periods, so results can vary. If you need specialized, medical-grade support, we recommend consulting your healthcare provider.

Can I use Postrelix in a wheelchair?

Many wheelchair users tell us it adds comfort and support for daily sitting. However, Postrelix is an everyday comfort cushion — not a medical device. If you’ve been prescribed a specific wheelchair cushion or are at risk of pressure sores, please check with your healthcare provider first. Always ensure the cushion sits flat and secure without interfering with any built-in safety or positioning features.

Can I use it while driving?

Yes, Postrelix is commonly used in cars and trucks to make long drives more comfortable.
Because it raises your seat height by about 1–3 inches, always make sure you can see the road clearly and reach the pedals comfortably before driving.
Disclaimer: Postrelix is a comfort accessory only. Always ensure it does not interfere with seatbelts, airbags, or other safety systems, and confirm they remain fully functional when the cushion is in place.

Will it fit my chair/car?

Postrelix is designed to fit most seats: office chairs, car seats, trucks, recliners, dining chairs, and wheelchairs. The non-slip base helps keep it steady on leather, vinyl, or fabric. If it doesn’t work with your setup, you’re covered by our 30-day guarantee.
Disclaimer: Because seat designs vary, fit and comfort may differ. Always ensure the cushion sits flat and does not obstruct seatbelts, airbags, or other built-in safety features.

Will it slip or move around?

The bottom is reinforced with non-slip grips to help it stay in place — even on leather car seats.

I have more questions. How can I contact you?

We’re here to help! Simply use our contact form and our friendly team will get back to you as soon as possible.