Topstar Sitness 15 Silla de oficina ergonómica, tejido negro, ajuste de altura continuo, base de aluminio pulido ST19UG20

Long hours at a desk often lead to back strain and fatigue. The Topstar Sitness 15 office chair tackles this with an orthopedic backrest and a dynamic sitting mechanism that encourages active posture throughout the workday.

Who is it for

Office workers, home-office users, and anyone who spends up to 8 hours a day seated and wants a chair that supports the spine and promotes movement. It suits users up to 110 kg and is ideal for carpeted floors thanks to its braked castors.

Main features

• Stepless seat height adjustment via Toplift gas spring, with a range of 42–55 cm
• Ergonomic, height-adjustable backrest with orthopedic shaping for lumbar support
• Sitness joint mechanism enables dynamic, active sitting and tilting
• Polished aluminum base with load-dependent braked double safety castors for carpeted floors
• Durable black fabric upholstery; seat dimensions 48 x 48 cm, backrest height 58 cm

Specifications

• Series: Sitness
• Upholstery material: Fabric
• Upholstery colour: Black
• Seat height adjustment: Stepless with Toplift gas spring
• Seat height range: 42 - 55 cm
• Seat width: 48 cm
• Seat depth: 48 cm
• Backrest height: 58 cm
• Backrest type: Ergonomic, orthopedic, height-adjustable
• Sitting mechanism: Sitness joint for dynamic/active sitting
• Base material: Polished aluminum
• Castors: Load-dependent braked double safety castors for carpeted floors
• Maximum user weight: 110 kg
• Recommended daily usage: 8 hours
• Armrests: Not included (optional)
• Certifications: GS-certified by TÜV Rheinland
• Country of manufacture: Germany

Tips

To get the most from the Sitness joint, adjust the seat height so your thighs are parallel to the floor and your feet rest flat. The braked castors prevent unwanted rolling on carpet, but the chair is not intended for hard floors.