Etac Cross 3A back support

Shape Up!

Reach your positioning targets

There is no other back support like the Cross 3A.

Explore the possibilities and discover how your positioning targets are being achieved without using expensive back support systems. Customize the shape and support directly, with the user positioned in the wheelchair. You will get instant feedback and can always reshape the support as needs change.

Proximal stability is the starting point to postural control. The Cross 3A Back Support is a tool meeting your positioning targets, based on the users individual abilities and body shape. To seek ability and improving mobility and activity. This is what we call Ability Based Seating™.

Thank you for shaping up!


How to shape Up

How to shape Up

Poor posture takes out all of our energy. To cope with being active, being seated in a wheelchair requires proper back support. Learn more about how to use the Cross 3A back settings in the following pages. Let´s shape up!
Achieving proximal stability is core

Achieving proximal stability is core

Creating a sufficient pelvic support is the first step towards proximal stability. The seat to back angle and lower back straps are the core settings to stabilize the pelvis.
Sitting tolerance

Sitting tolerance

The Cross 3A back support offers adjustments for a supportive well balanced back support. It is covered by a resilient high density foam cover which evens outs the pressure. No peak pressure on sensitive zones – an important condition for improving the user´s sitting tolerance over time.
Ability Based Seating

Ability Based Seating

By an ability based approach we seek to strengthen the user´s abilities. Providing a supportive position in balance, improves the activity level. Ability is precious. Use it or lose it. Enable it and improve it.


Etac item number
Compatible with
Height (mm)
Low back, 35-40 cm 27382 Cross 5 320-450
High back, 35-40 cm 27953 Cross 5 380-510
Low back, 42,5-50 cm 27386 Cross 5, Cross 5 XL 320-450
High back, 42,5-50 cm 27990 Cross 5, Cross 5 XL 380-510
Low back, 52,5-60 cm 27390 Cross 5 XL 320-450
High back, 52,5-60 cm 27991 Cross 5 XL 380-510



Download of user manuals are intended for expedient purpose only. The products in reference may be subject to change without prior notice and reader’s discretion is advised to ensure coherence with product version and article number as well as the appropriate translation.