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Back Supports | Lower Back Pain Support

Sissel Sitfit Cushion SI3033.02

Made in the UK Dispatched within 24hrs

The 33cm Blue Sissel SITFIT is an air filled sitting aid offering comfort and relief to its user, whilst also exercising muscles of the back and pelvic floor.  The SITFIT is individually adjustable using the valve to change pressure by adding or removing air.

Regular price £26.95 GBP
Regular price Sale price £26.95 GBP
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Taxes included. Shipping calculated at checkout. We ship internationally.

Sizing & Fit

Size Measurement
Diameter 33cm

How It Works

An air filled sitting aid offering comfort and relief to its user, whilst also exercising muscles of the back and pelvic floor. Individually adjustable using the valve to change pressure by adding or removing air.

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Delivery

Dispatched within 24 hours of your order.

Delivery rates

United Kingdom: £3.95, standard delivery 2 to 3 days

This product is available for delivery within the United Kingdom only.

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£26.95

VertiBaX Originals

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Our most-loved back and posture support, chosen by thousands of customers.

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Our Story

Founded in Yorkshire

Our Story

VertiBaX was founded by Angus Macnab, following a road traffic accident in 2000 that left him managing persistent lower back pain.

Drawing on his background in biochemistry and as a gym instructor, Angus developed a Core Lumbar range of lower back belts and supports — designed to warm the core muscles using natural body heat, while stabilising the lower back at the L5/S1 level of the spine.

After five years of development, VertiBaX officially launched in 2006. In 2010, the VB119 passed through the Boots Centre for Innovation and became a trusted lower back pain management aid.

Beyond His Own Pain

Helping many more since

Beyond His Own Pain

What started as a solution for Angus's own pain has since grown to help many others: VertiBaX went on to work alongside paediatric physiotherapists caring for children with cerebral palsy, developing a child back support belt now used in NHS clinics across the UK.

Today, VertiBaX is MHRA-registered as a manufacturer of Class 1 orthopaedic support devices — still designed in Yorkshire, made in Cornwall, and still owned and run by Angus.

Got Questions?

Frequently Asked Questions

01 How do I adjust the firmness?

Use the valve to add or remove air, adjusting the pressure to your preference.

02 What is this cushion designed to do?

It offers comfort and relief while also exercising the muscles of the back and pelvic floor.

03 Do I need any other equipment to use it?

You may want a Needle Pump to inflate or deflate it, sold separately.

04 What size is this cushion?

33cm diameter.

05 Can I use this on any chair?

Yes, it's designed as an air-filled sitting aid that can be placed on a chair to sit on.