Movement while you work
Tilt and rotation add variation to your sitting position.
Sit-i Dynamic Chair · Office
Opus
Dynamic sitting at your desk.
Price €1.775,00 including VAT
Movement, repositioning and finish.
Repositioning
The wheeled base makes it easy to move between working positions.
Shape and finish
A minimalist shape with a carefully finished, low-maintenance surface for long-term use.
Tilt · rotate · work
The movement principle
How the seat moves.
Penthapod® forms the flexible base that moves with you. The Top Unit gives the seat room to tilt and rotate.
Configuration and specifications
- Configuration
- Opus with aluminium base
- Mechanism
- Penthapod® as a flexible base; Top Unit for tilt and rotation
- Mobility
- Single-braked castors: easy to move; locked while seated. Not suitable for training with clients.
- Maximum user weight
- 150 kg
- Estimated delivery time
- Approximately 12 weeks
- Colours
- Forest green · Navi
- Sit-i Saddle Leaf
- Forest green with stitching · €325 extra incl. VAT
- Seat height (standard)
- 53–68.5 cm
- Seat size (width × depth)
- 360 × 340 mm
- Upholstery
- RPET on standard Opus, Saddle Leaf and Saddle Arrow.
- Sit-i Saddle Arrow
- Navi blue with stitching · €325 extra incl. VAT
Need a different seat height? Ask about adapting your Sit-i →
Choose carefully
Which Sit-i model suits your environment?
The base, mobility, application and available technology vary by model. This comparison helps you make an initial choice.
Compare all Sit-i models
| Model | Base | Sensor technology | Suited to | |
|---|---|---|---|---|
| Athlete · ProSport and movement analysis | Fixed legs | Sensors and software included | Coaches and movement professionals | View Athlete · Pro |
| CareWork chair for healthcare professionals | Double-braked wheels | Without sensors | Treatment and care | View Care |
| Care · ProMovement analysis during treatment | Double-braked wheels | Sensors and software included | Therapy and analysis | View Care · Pro |
| OrisPrecision in oral care | Smooth-running skate wheels | Without sensors | Oral care professionals | View Oris |
| OpusOffice and home working | Single-braked wheels | Without sensors | Office | You are viewing this model |
Athlete · Pro
Sport and movement analysis
Coaches and movement professionals
Base and sensor technology
- Base
- Fixed legs
- Sensor technology
- Sensors and software included
Care
Work chair for healthcare professionals
Treatment and care
Base and sensor technology
- Base
- Double-braked wheels
- Sensor technology
- Without sensors
Care · Pro
Movement analysis during treatment
Therapy and analysis
Base and sensor technology
- Base
- Double-braked wheels
- Sensor technology
- Sensors and software included
Oris
Precision in oral care
Oral care professionals
Base and sensor technology
- Base
- Smooth-running skate wheels
- Sensor technology
- Without sensors
Opus
Office and home working
Office
Base and sensor technology
- Base
- Single-braked wheels
- Sensor technology
- Without sensors
You are viewing this model
Well organised
Clear from the start.
Chair and Spark
Included: Opus in your chosen configuration. From 11 November 2026, the freely accessible Spark learning pathway helps you apply dynamic sitting. Spark is available in Dutch only.
Explore Spark in the Academy →
Read about working from home and at the office →Delivery in consultation
The estimated delivery time is approximately twelve weeks. We will specify the exact version and delivery arrangements in the quotation.
Parts warranty
Five-year factory warranty on construction and mechanics. Two years on upholstery.
Support during use
Contact us for help with use or maintenance.
Opus
Does Opus suit your workspace?
Tell us about your workplace and way of working. You will receive tailored advice on the configuration and application.