C4 office chair leather with fabric

UnitedSeats C4 Office Chair – Leather with Fabric Blue/Black | Article No. US.291763

The UnitedSeats C4 is a premium 24/7 office chair designed for demanding work environments such as control rooms, dispatch centers, and executive offices. Finished in a stylish blue and black leather/fabric combination, the C4 offers exceptional comfort, durability, and full ergonomic adjustability.

✔ Standard Features:

• Stepless height adjustment (12 cm range)
• High backrest with tilt adjustment (0–17°)
• Adjustable headrest
• Seat cushion depth and tilt adjustment
• Seat rocker adjustment (±5°)
• Luxury EVO armrests – adjustable in height and angle
• Mechanical lumbar support – continuous rotation
• Seat width: 49 cm
• Full leather trim with white contrast stitching
• Heavy-duty gas lift
• 5-star chrome base with smooth-rolling 6 cm castors

➕ Optional Upgrades:

• 4D Comfort Armrests – adjustable in height, width, and direction
  + €79
• Comfort Headrest – articulating, height adjustable, lockable, with hygienic antimacassar cover
  + €169
• 5 cm castor wheels
• Low-profile gas lift

📦 Part of the Synergy Series

This chair belongs to the UnitedSeats Synergy 24/7 series – developed for maximum operator comfort during continuous use. Explore other models in this series:

• US.291761 – C1 Leather/Fabric Blue/Black
• US.291760 – C1 Leather/Fabric Black
• US.291762 – C4 Leather/Fabric Black
• US.291764 – C8 Leather/Fabric Black
• US.291765 – C8 Leather/Fabric Black/Blue

🧾 Certified Quality & Safety:

• Crib 5 Fire Safety Standard – BS 7176:2007 + A1:2011
• EN-1335 European Office Chair Standard

👍 Pros and Cons:

• ✔ Seat depth and tilt adjustment
• ✔ Mechanical lumbar support
• ✔ Fully adjustable armrests and headrest
• – 4D armrests and comfort headrest available as paid options

Order your UnitedSeats C4 chair online or request a quote for bulk or customized configurations. Questions? Our seating experts are here to help!