We have worked closely with Occupational Therapist Alison Biggs BSc to create our specialist lumbar support. Alison is also the Chair of the Royal College of Occupational Therapists Specialist Section Work and very highly regarded.
Alison recommends this shape, size and density of foam lumbar cushion, as it is a suitable size to use with an existing office chair which may be lacking suitable lumbar support. Other foam cushions can be too big, using up too much of the seat depth or be too big for the amount of lumbar shaping required and mesh cushions can also lack the shaping of support required.
Everything from the D shape to the foam density has been designed to maximise support to the user and help promote good posture.
The cushion dimensions are: width (across the chair back): 26cm
Height (top to bottom of cushion): 9.5cm
Depth (not compressed): 5cm
Depth (compressed): 1-2cm
Foam density: P36/100 (soft)
Black cushion cover, attach to chair by extendable strap.