Gaming chair Onex STC Alcantara L Series — black/red, Alcantara upholstery, large size

The Onex STC Alcantara L Series — black/red is a large gaming chair upholstered in Alcantara-style material designed for long gaming sessions and extended office use. It combines a high backrest, wide seat and firm padding to provide ergonomic support that helps maintain posture during prolonged sitting. The chair features adjustable armrests, a reclining mechanism and a sturdy base to balance comfort and stability for larger users.

Advantages

The Alcantara-style upholstery offers a soft, wear-resistant surface that is comfortable to the touch while resisting slips and heat build-up. The large-size frame and wide seat provide extra room and improved weight distribution for users who need more space than standard models. Integrated reclining and tilt adjustments allow users to change seating angle for work, relaxation or intense gaming without compromising support. The reinforced base and durable materials are intended to ensure long-term usability under frequent daily use.

Suitable for

• Extended gaming sessions and live streaming
• Home office work and long desk hours
• Users who prefer a larger seat and higher back support
• People seeking durable upholstery with a premium feel

Key specifications

• Upholstery: Alcantara-style material in black and red
• Size: Large frame with wide seat and tall backrest
• Adjustability: Reclining mechanism and tilt adjustments
• Armrests: Adjustable armrests for height and position
• Padding: Firm ergonomic padding for prolonged use
• Base: Sturdy multi-spoke base for stability

How to use

Adjust the seat height so your feet rest flat on the floor and knees are roughly at a right angle. Set the armrest height and position to support your forearms while keeping shoulders relaxed. Use the reclining function to change the backrest angle during breaks or lower-intensity tasks; lock the backrest in a comfortable position for focused work or gaming. Regularly check fastenings and adjust tilt tension to match your body weight for optimal support.

Usage recommendations

For longest upholstery life, avoid prolonged exposure to direct sunlight and clean spills promptly using a soft, damp cloth. Rotate between sitting positions and take short standing breaks every hour to reduce strain. Use appropriate floor protection if placing the chair on delicate surfaces.