Product Description
The MOBB Convertible Coccyx Cushion is a flat 3″ seat cushion with a removable coccyx cut-out that attaches by Velcro. With the section in place it is a full supportive cushion; with it removed, a channel lifts pressure off the tailbone entirely. The top inch is memory foam, the cover is breathable and washable, and it comes in three widths — 16″, 18″ and 20″.
Most coccyx cushions force a permanent choice: buy the one with the cut-out and live with the gap, or buy the solid one and live with the pressure. The Velcro section here removes that decision. During the acute phase of a tailbone injury you take the section out and the coccyx bears nothing; as things settle you put it back and get a continuous supportive surface. One cushion covers the whole recovery.
The top inch is memory foam rather than plain polyurethane, which is what makes the cushion tolerable for long sitting. Memory foam spreads load around the sitting bones instead of concentrating it, and the difference shows over hours rather than minutes. The breathable cover matters for the same reason — heat build-up is one of the main reasons people abandon a foam cushion.
Key Features
Removable Coccyx Cut-Out Attaches by Velcro. Take it out for full tailbone relief, put it back for a continuous supportive surface — and change your mind as often as recovery requires.
1″ Memory Foam Top Layer Spreads load around the sitting bones rather than concentrating it, which is what makes the difference over a long sitting session.
Three Widths: 16″, 18″ and 20″ All 16″ deep and 3″ thick. Match the width to the chair or wheelchair seat rather than to the person.
Flat 3″ Profile Unlike the Convertible Coccyx Wedge, this cushion does not change the seat angle — the right choice when you want tailbone relief without altering posture.
Breathable, Washable Cover Breathable to reduce heat build-up and removable for washing, which matters for a cushion in daily use.
Lifetime Limited Warranty Backed by MOBB Home Health Care’s lifetime limited warranty against manufacturing defects.
Which Width, and Cushion or Wedge?
Measure the seat, not the person. The 16″ × 16″ suits a standard dining or office chair and a 16″ wheelchair; the 18″ × 16″ is the middle size for most armchairs and 18″ wheelchairs; the 20″ × 16″ suits a wide armchair, a bariatric chair or a 20″ wheelchair. A cushion wider than the seat will overhang and rock.
Choose this flat cushion when you want tailbone relief without changing seat angle. Choose the Convertible Coccyx Wedge — the angled version of the same idea, tapering 4.5″ to 3″ — if you also slump or slide forward and want the pelvis tilted. The Wedge also ships with a wood insert for sling-seat wheelchairs, which this cushion does not.
Specifications
| Specification |
Details |
| Cushion SKU |
16″ × 16″: MHCC | 18″ × 16″: MHCCS | 20″ × 16″: MHCCL |
| Dimensions |
16″ × 16″: 18''W x 16''D x 3''H | 18″ × 16″: 16''W x 16''D x 3''H | 20″ × 16″: 20''W x 16''D x 3''H |
| *** |
Washable Cover |
| Warranty |
Lifetime Limited Warranty |
| Available Options |
16″ × 16″ (MHCCS) | 18″ × 16″ (MHCC) | 20″ × 16″ (MHCCL) |
| Brand |
MOBB Home Health Care |
Best For
- Tailbone pain from a fall, fracture, prolonged sitting or pregnancy
- Anyone who wants coccyx relief without changing the angle of the seat
- Recovery periods where the level of relief needed changes over weeks or months
- Office, dining, car and wheelchair seating in three widths from 16″ to 20″
Why Choose This Product
- The Velcro cut-out means one cushion covers both the acute phase and the recovery, instead of buying two
- Memory foam top layer and a breathable washable cover at a mid-market price
- Three widths so the cushion matches the chair, with a lifetime limited warranty from Factory Direct Medical
Frequently Asked Questions
How does a coccyx cushion relieve tailbone pain?
It removes the load rather than padding it. With the cut-out section removed, your weight is carried by the sitting bones on either side and the tailbone bridges an open channel, bearing nothing at all. Padding alone still transmits force through the tailbone. That is why cut-out cushions are the standard recommendation after a coccyx injury.
What size coccyx cushion do I need?
Match the width to your chair. Measure the seat between the armrests: 16″ for a standard dining or office chair or a 16″ wheelchair, 18″ for most armchairs and 18″ wheelchairs, 20″ for a wide or bariatric chair. All three are 16″ deep. If the cushion is wider than the seat it will overhang the edges and rock, which is less comfortable and less stable.
Cushion or wedge — which should I choose?
Choose the flat Cushion if your problem is tailbone pain alone and you are happy with your current seat angle. Choose the Wedge if you also slump, slide forward or have lower back fatigue, since it tilts the pelvis forward as well as relieving the coccyx. The Wedge additionally includes a wood insert for sling-seat wheelchairs.
Can the cover be washed?
Yes, the cover is removable and washable. Wash the cover only. The memory foam core should be spot cleaned with a damp cloth and air dried — never machine washed or soaked, as water breaks down memory foam and it can take days to dry through.
Summary
The MOBB Convertible Coccyx Cushion is a flat 3″ seat cushion with a Velcro-attached removable coccyx cut-out and a 1″ memory foam top layer, available in 16″, 18″ and 20″ widths with a breathable washable cover and a lifetime limited warranty.
Important Notice: This product is a comfort and positioning aid and is not a substitute for professional medical advice, diagnosis or treatment. If you are managing pressure injuries, post-surgical recovery or a diagnosed spinal condition, consult an occupational therapist or physiotherapist before use to confirm it is appropriate for you. Discontinue use and seek advice if you experience increased pain, numbness or skin redness.
