# Office chair Topstar Sitness 55 — ergonomic swivel chair with adjustable height, blue

**URL:** https://aio.lv/en/product--topstar-sd69x-l50--3202245
**Data updated:** 2026-02-12 09:49 (EET)
**Category:** Ergonomic Chairs
**Manufacturer:** Topstar
**Manufacturer code:** SD69X L50
**EAN:** 4014296237206
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 331.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 273.96 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--topstar-sd69x-l50--3202245

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Courier delivery to door | 17.07.2026 | 5.06 EUR |

## Summary description

Topstar Sitness 55 is an ergonomic office swivel chair in blue designed for daily desk use. It features an adjustable seat height to fit different workstations and a Sitness mechanism that promotes micro-movements for active sitting and better posture. Suitable for home or office, it provides comfort during long working hours and supports dynamic seating to reduce back strain.

## Long description

Topstar Sitness 55 is an ergonomic swivel office chair in blue designed for daily desk use. The chair combines an adjustable seat height with a Sitness mechanism that allows gentle micro-movements, supporting an active sitting posture. Intended for home offices and commercial workspaces, the Sitness 55 helps distribute load more evenly across the pelvis and lower back, improving sitting comfort during prolonged periods.
Advantages
The Sitness mechanism enables slight seat tilting and rotation that follow the user’s natural movements, encouraging core engagement and reducing static pressure on the spine. The height-adjustable gas lift ensures a correct seating position relative to desks of different heights. The chair’s breathable upholstery and contoured seat provide a balance of support and comfort for extended use.
Suitable for
Home office work and remote workstations
Corporate offices and meeting rooms
Students and study desks
Light administrative and computer tasks
Key specifications
Type: Ergonomic swivel office chair with active Sitness mechanism
Color: Blue upholstery
Seat height: adjustable via gas lift to suit different desk heights
Base: five-point base with casters for mobility
Upholstery: durable, breathable fabric designed for daily use
Mechanism: dynamic seat mechanism allowing micro-movements
Load capacity: designed for standard office user weight ranges
How to use
Adjust the seat height using the lever under the seat so that your feet rest flat on the floor and your knees are approximately at a right angle. Allow the Sitness mechanism to follow your natural movements; the seat will tilt slightly as you shift position, promoting active sitting. Position the chair so the distance to your desk allows relaxed shoulders and forearms roughly parallel to the desktop. Use the casters to move the chair smoothly and avoid dragging the base across delicate flooring.
Usage recommendations
For optimal ergonomics, combine the Topstar Sitness 55 with a desk set at elbow height and a monitor positioned at eye level. Periodically change posture, stand up and walk briefly every 30–60 minutes, and inspect casters and gas lift for wear to maintain safe and comfortable operation.

## FAQ

### How much does the Topstar Sitness 55 office chair cost, and is it available for purchase?

The price is 331.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Topstar products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Topstar service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/3202245/51446992_large.webp