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Topstar office chair Sitness RS, black/red, faux leather, swivel
€440,32
incl. VAT
€363,90 excl. VAT (21%)
Price excluding shipping costs: €4,95 incl. VAT for orders under €49,95. From €49,95 we ship for free.
21%
goedkoper
than the average price on Google Shopping Average price of other shops offering this same item, gemeten op 01-10-2026
✗ Not in stock
Expected from supplier: week 50 (7 December - 13 December 2026)
Brand: Topstar
| Article number | 77400104 |
|---|---|
| EAN | 4014296492803 |
| OEM number | SR10P DA01X |
| Weight | 18,900 kg |
|---|---|
| Dimensions | B: 800 mm × H: 480 mm × D: 600 mm |
| Country of origin | EU |
| Customs tariff (HS code) | 94013100 |
| VAT rate | 21% |
This is why Dex likes this article
This Sitness RS is tailored to you: the Sitness joint mechanism moves smoothly with you, while the headrest and armrests add extra comfort during long working days. Sturdy, stylish and ready for a 110 kg load.
When do you choose this product?
What does this product do?
This ergonomic office chair provides active support during long working days thanks to the unique Sitness joint in the seat. The joint creates subtle movements that improve your posture and activate your back muscles. With a seat height adjustable between 420-550 mm and a backrest height of 600 mm, the chair suits different body heights.
Why choose this specific model?
The combination of faux leather and mesh material in the backrest ensures optimal ventilation and comfort. The two-tone black and red design gives the chair a professional look that fits modern office environments. The large contoured seat, measuring 500 x 480 mm, offers ample room for comfortable sitting.
How does the Sitness joint work?
The Sitness joint in the seat creates small, natural movements while you sit. This movement activates your back muscles and prevents rigid sitting postures that can lead to tension and fatigue. The joint works automatically with your body movements, so you don't need to consciously pay attention to it.
Practical considerations
The chair is suitable for users up to 110 kg and comes with a headrest and armrests. The black plastic five-star base is fitted with soft castors as standard, suitable for carpet. For use on hard floors, you can optionally order hard castors under article number 70699954. The faux leather upholstery is easy to clean with a damp cloth.
This ergonomic office chair provides active support during long working days thanks to the unique Sitness joint in the seat. The joint creates subtle movements that improve your posture and activate your back muscles. With a seat height adjustable between 420-550 mm and a backrest height of 600 mm, the chair suits different body heights.
Why choose this specific model?
The combination of faux leather and mesh material in the backrest ensures optimal ventilation and comfort. The two-tone black and red design gives the chair a professional look that fits modern office environments. The large contoured seat, measuring 500 x 480 mm, offers ample room for comfortable sitting.
How does the Sitness joint work?
The Sitness joint in the seat creates small, natural movements while you sit. This movement activates your back muscles and prevents rigid sitting postures that can lead to tension and fatigue. The joint works automatically with your body movements, so you don't need to consciously pay attention to it.
Practical considerations
The chair is suitable for users up to 110 kg and comes with a headrest and armrests. The black plastic five-star base is fitted with soft castors as standard, suitable for carpet. For use on hard floors, you can optionally order hard castors under article number 70699954. The faux leather upholstery is easy to clean with a damp cloth.
Dex finds with this article
Specifications according to the manufacturer
Office swivel chair "Sitness RS"
Modern "gaming chair" - designed with ergonomic considerations for long periods of sitting
• Upholstery: "Lotos" faux leather
• stepless seat height adjustment with top lift
• backrest with mesh/padding combination in two-tone design, height adjustable via notch mechanism
• high, contour-shaped backrest with lateral guidance for relaxed sitting
• large bowl-shaped seat with Sitness joint for three-dimensional mobility of the seat surface, in two-tone design
• point synchronous mechanism for synchronous adjustment of seat and backrest angle
• body weight setting individually adjustable, steplessly lockable
• large and stable black plastic base
• with load-dependent braked safety twin castors for carpeted floors in speckled design
• seat dimensions: (W)500 x (D)480 x (H)420 - 550 mm
• armrest height: 600 mm
• including headrest and armrests: type P4 - height adjustable
• other colours available on request!
Note: Products listed as accessories are not part of the chair and are not included in the scope of delivery!
Sitting recommendation: unlimited use
- Recommended for intensive use in business / private environments
- Use without restriction
- high sitting comfort
- high ergonomic specification
- EN 1335 1-3 and GS tested
Modern "gaming chair" - designed with ergonomic considerations for long periods of sitting
• Upholstery: "Lotos" faux leather
• stepless seat height adjustment with top lift
• backrest with mesh/padding combination in two-tone design, height adjustable via notch mechanism
• high, contour-shaped backrest with lateral guidance for relaxed sitting
• large bowl-shaped seat with Sitness joint for three-dimensional mobility of the seat surface, in two-tone design
• point synchronous mechanism for synchronous adjustment of seat and backrest angle
• body weight setting individually adjustable, steplessly lockable
• large and stable black plastic base
• with load-dependent braked safety twin castors for carpeted floors in speckled design
• seat dimensions: (W)500 x (D)480 x (H)420 - 550 mm
• armrest height: 600 mm
• including headrest and armrests: type P4 - height adjustable
• other colours available on request!
Note: Products listed as accessories are not part of the chair and are not included in the scope of delivery!
Sitting recommendation: unlimited use
- Recommended for intensive use in business / private environments
- Use without restriction
- high sitting comfort
- high ergonomic specification
- EN 1335 1-3 and GS tested
Specifications
Version
with armrests
Seat upholstery
Faux leather
Seat colour
black / red
Load capacity
110 kg
Manufacturer
Hazard information
No hazard classification applies according to the available manufacturer and supplier information.
This product contains no substances classified as hazardous under the CLP Regulation.
This product contains no substances classified as hazardous under the CLP Regulation.
Product information checked by XtremeOffice
This page has been compiled based on information from the manufacturer and our supplier. Last checked on 30-10-2026.
This page has been compiled based on information from the manufacturer and our supplier. Last checked on 30-10-2026.
Alternative versions
This product is also available in other versions:
| Image | Product | Price | Stock | Order |
|---|---|---|---|---|
|
€363,90
€440,32 incl.
|
● Not in stock | ||
|
€26,34
€31,87 incl.
|
● Not in stock |
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