# Office chair Topstar Sitness 15 — ergonomic swivel chair, adjustable height, blue

**URL:** https://aio.lv/en/product--topstar-st19ut38--3697938
**Data updated:** 2025-12-29 13:45 (EET)
**Category:** Ergonomic Chairs
**Manufacturer:** Topstar
**Manufacturer code:** ST19UT38
**EAN:** 4014296111612
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 269.49 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 222.72 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--topstar-st19ut38--3697938

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Courier delivery to door | 23.07.2026 | 5.06 EUR |

## Summary description

Topstar Sitness 15 is an ergonomic office swivel chair in blue with adjustable height. Designed for everyday desk use, it supports active sitting to promote micro-movements and improve posture. Features include a swivel base, height adjustment mechanism and contoured seat for comfort during long work sessions. Suitable for home offices and workplaces.

## Long description

Topstar Sitness 15 is an ergonomic office swivel chair in blue with adjustable height, designed for everyday desk use. The chair promotes active sitting through a flexible seat mechanism that encourages small movements and supports an upright posture during prolonged work sessions. It features a contoured seat, a stable five-star base and a simple height adjustment suitable for home offices and workplace environments.
Advantages
The Sitness 15 provides dynamic seating that stimulates micro-movements to reduce static posture. Its adjustable height allows correct desk alignment, while the contoured seat improves pressure distribution for extended comfort. The swivel base ensures easy reach around the workspace and the chair is compact enough for both small home offices and standard office layouts.
Suitable for
Home office and remote work
Office workplaces and meeting rooms
Students and study desks
Short to medium-length daily sitting periods
Key specifications
Brand: Topstar
Model / MPN: Sitness 15 — ST19UT38
EAN: 4014296111612
Type: Ergonomic swivel office chair
Color: Blue
Features: Height adjustment, swivel base, contoured seat for active sitting
How to use
Adjust the seat height so that your feet rest flat on the floor and your thighs are approximately horizontal. Sit back so the contoured seat supports your pelvis and allow the chair’s flexible mechanism to facilitate small posture adjustments. Use the swivel function to access items around your desk without twisting your torso. For optimal results, change posture regularly and combine with short standing or movement breaks.
Usage recommendations
For ergonomic benefit, pair the Topstar Sitness 15 with a desk set at elbow height and position monitors at eye level. Regularly vary sitting position and stand at intervals to reduce prolonged static load on the spine.

## FAQ

### How much does the Topstar Sitness 15 office chair cost, and is it available for purchase?

The price is 269.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 99 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 20.07.2026 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/3697938/51757007_large.webp