€345,00
Who is it for? Looking for a cushion for coccydynia, tailbone pain when sitting, after a fall, or for sacrococcygeal pain? The Aporia Coccyx avoids direct pressure on the tailbone area while keeping support spread over the other contact areas.
How is it different from a cushion with a rear cut-out? A cut-out cushion removes material under the tailbone; the rest is a fixed block of foam, with no moving parts. The Aporia Coccyx removes support under the tailbone (6 cm rear cut-out narrowing to 3 cm) and carries the pelvis on four independent supports mounted on ball joints: each side is carried separately and follows the adjustments of the sitting position.
Presented at the 4th International Symposium on Coccyx Disorders (Paris Coccyx 2023, Cochin Hospital), for which Blue Portance was a partner. Photos and video further down this page.
“After a fall on a wet terrace, I could no longer sit for long (…) The Blue Portance cushion lets me stay seated all day.” — Isabelle L. (translated from French) Read the reviews
Join Isabelle, Vanessa and the 85% of our customers who keep their cushion at the end of the 30-day trial.
In short. Balanced dynamic seating with independent supports: four supports on ball joints accompany the small movements of the pelvis, without locking it in place or throwing it off balance. 6 cm rear cut-out, narrowing to 3 cm toward the center · 41 × 40 × 12 cm · 1.7 kg · two firmness options · 30-day trial.
Which version should you choose? A diagnosis is not enough: it all depends on which contact areas are painful, which ones are still tolerated, and how you respond to movement. Selection guide
Aporia acts on the mechanical conditions of sitting; it does not treat the condition itself.
The choice of firmness does not depend only on how intense the pain is: above all, it depends on how your body responds to pressure, to sinking in, and to the support of the seat.
(Click each firmness option to see the details.)
This is the reference configuration and the most widely chosen. It favors load-bearing support, stable contact points and a responsive cushion, while leaving the pelvis free to make its micro-movements.
Choose it if you are looking for:
It may also be preferable when overly soft seats cause a feeling of sinking, pulling or stretching, or make the pain worse over time.
Feel: a comfortable first contact with firmer, stable and responsive support.
This configuration adds 2 cm of viscoelastic (memory) foam to make loading more gradual and soften pressure peaks at the points of contact.
Choose it if you mainly have:
Feel: a softer, enveloping first contact, with more gradual loading.
⚠️ Softer does not always mean better suited. If soft seats give you a feeling of sinking in, lack of support, or pulling or stretching of the tissues, Balanced Comfort may be preferable.
Not sure? Your own experience is a good guide: notice in particular whether you usually feel better on a firm, supportive seat or on a softer, enveloping one.
Unsure about the version or the firmness? Our selection guide helps you identify which contact areas to keep and which to relieve. You can also call us for personalized advice before ordering: +33 6 15 77 81 36 (Monday–Friday, 9 a.m.–5 p.m., Paris time).
Verified customer reviews: 4.6 stars on Trustpilot.
🛡️ 30-day money-back guarantee
🚚 Free shipping within mainland France
Shipping costs for other countries are calculated at the next step.
The APORIA® Coccyx cushion is balanced dynamic seating with independent supports and a rear cut-out. Same ExoBase™: a curved base allowing general 360° rocking; four independent supports mounted on the base, each on an elastomer ball joint with its own mobility and limited travel.
This version may be considered when pressure behind the anus and under the tailbone triggers the pain, the perineum can remain supported, and the other contact points tolerate the load; if the sit bones are clearly painful, check that the rear cut-out does not increase the load on them.
| Feature | Value |
|---|---|
| Cut-out | 6 cm rear cut-out between the rear supports, narrowing to 3 cm toward the center |
| Dimensions | 41 cm deep × 40 cm wide at the front (38 cm at the back) × 12 cm high; 1.7 kg |
| Firmness options | Balanced Comfort or Enveloping Comfort; anti-bottoming layer |
| Adjustment | Two wedges included |
Trial and purchase: 30-day trial; free returns from anywhere in the European Union; your choice of an exchange (version and/or firmness; shipping of the new product paid by the customer, new 15-day trial) or a full refund; personalized help getting started. Trial, return and refund conditions
Situations in which this version may be relevant
Points to watch
These guidelines are not medical contraindications. A diagnosis alone is not enough to choose a version: what matters is the area that does not tolerate pressure and the way sitting affects your symptoms. If in doubt, ask your doctor for advice.
In some cases of common coccydynia, the pain is linked to instability of the tailbone under the load of sitting: dislocation or hypermobility, visible on X-rays taken sitting but not lying down. Dr. Jean-Yves Maigne, a pioneer of the modern approach to coccydynia, demonstrated this mechanism (Maigne, Guedj & Straus, Spine, 1994). It is not the only possible cause. When direct pressure under the tailbone triggers the pain, removing that pressure limits the load placed on it when sitting.
Kept after the trial (85% at 30 days); patent FR 3 140 745 B1 and EP/US applications; Aporia was presented on the Blue Portance stand at the 4th International Coccydynia Symposium (Paris Coccyx 2023, Paris, July 6–7, 2023). Aporia® is not a medical device.
What is the difference between a rear cut-out and a central cut-out? The rear cut-out removes support under the tailbone: 6 cm between the rear supports, narrowing to 3 cm toward the center. The central cut-out of the Périnée version removes support in the center, under the perineum. They do not clear the same area: a rear cut-out does not relieve the perineum.
Is the Coccyx cushion suitable if my perineum also hurts? Not necessarily: a rear cut-out does not relieve the perineum. If the pain extends to the center, the extent of the area that does not tolerate pressure points toward a central cut-out (Périnée) or a continuous center channel (Aporia Canyon). If the sit bones are also painful, look for the version that keeps the necessary area out of contact while keeping the most continuous support around them.
Is the cushion suitable after a fall on the tailbone? Significant or persistent pain after a fall, or pain with unusual signs, calls for medical advice. After that, if direct pressure under the tailbone triggers the pain when sitting, a rear cut-out limits the load on that area. Aporia does not replace medical advice.
Can I try it before buying? Yes. You have a 30-day trial. Returns are free from anywhere in the European Union, and you choose between an exchange (version and/or firmness) and a full refund. For an exchange, shipping of the new product is at your expense and the product you receive gets a new 15-day trial. 85% of cushions are kept at the end of the 30-day trial.
Reviews translated from French.
A word from the founder and president
“I have lived with chronic degenerative disc disease for more than twenty years. While developing Aporia, I also suffered from chronic tailbone pain. So I tested every prototype on myself, for hours on end: that is what taught me that a seat should not just remove a contact point, but let the pelvis move without losing balance. Today, I can literally dance on the seat.” — Gil Ayache, founder and president of Blue Portance
The Blue Portance stand at the 4th International Symposium on Coccyx Disorders (Cochin Hospital, Paris, July 6–7, 2023). Blue Portance was a partner of the event.
Photos published with the consent of the people shown.
Video: Dr. Patrick Foye published a video filmed on the stand on his YouTube channel Tailbone Pain Doctor, in which Pascal Azadian presents the seat: “New Coccyx Cushion with Movable Sections. Tailbone Cushion, at Coccyx Conference 2023” (September 2023, 2 min 37 s).
A nurse manager, she shares her experience of the suffering caused by coccydynia, a disabling condition she has been living with for 5 years.
Christelle, one of our first customers, shares her journey with pudendal neuralgia and cluneal neuralgia, two painful conditions that made sitting unbearable for her.
Physiotherapist. The experience of a professional specializing in back problems and spinal pain.
| Weight | 1,7 kg |
|---|---|
| Dimensions | 41 × 40 × 12 cm |
| fermeté | Balanced Comfort – Dynamic Support (Balanced Dynamic Support), Enveloping Comfort – Memory Foam Feel (Soft Comfort – Memory Foam Feel) |
€345,00
