New
EC300 Ergonomic Office Chair
High-Back Mesh Chair with Adjustable Backrest, Lumbar & Sacrum Support, 3D Headrest and Sliding Seat
Details
- 5-Position Height-Adjustable Backrest for Tailored Torso Fit
- Precise Lumbar & Sacrum Support with Wider Surface Area
- 5-Position Instant-Lock Sliding Seat (1.97" / 50mm Adjustment Range)
- Premium 55 High-Density Foam Seat Cushion for Pressure Distribution
- 3D Dual-Axis Adjustable Headrest (Up/Down, Forward/Back, Rotation)
- 4-Position Lockable Recline (90° Work, 105° Read, 120° Lounge, 130° Rest)
- Adjustable Tilt Tension & SGS Class-4 Gas Lift for Stability
- Durable Alloy Base & 60mm Quiet-Roll Casters
- Supports Users 5'4"–6'5" with 280 lbs Weight Capacity
ProtoArc EC300 High-Back Ergonomic Office Chair is engineered for 8+ hour comfort, featuring a height-adjustable backrest, precise lumbar & sacrum support, 3D dual-axis headrest, and customizable sliding seat. It offers 4 locked recline angles and a solid build, delivering tailored support for modern professionals in home or office settings.
Tips: The wide-surface lumbar & sacrum support promotes natural posture, while the 55 high-density foam seat resists sagging for long-term comfort and reliability.
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5 Years
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5 Years backed by responsive support for product and parts-related issues.
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EC300 Ergonomic Office Chair
Sale price£210.00
Regular price£257.00
Key Features
Lumbar Support
Adjustable Backrest
Sliding Seat
4 Recline Modes
3D Headrest
Foam Cushion
Overview
Why Choose EC300
EC300 is designed for users who spend long hours at their desk and need full-body ergonomic support. With its adjustable backrest, precision lumbar support, and customizable seat depth, it adapts to different body types while maintaining proper posture throughout the day.
Unlike basic office chairs, EC300 offers a complete ergonomic system—from a 3D headrest to multi-position recline and tilt tension control—giving you flexibility between focused work, reading, and relaxation. It is built for professionals who prioritize comfort, adjustability, and long-term support.
FAQ
Who is EC300 best suited for?
EC300 is ideal for users who sit for long hours and need full ergonomic adjustability, including back, lumbar, seat, and head support.
What height range does it support?
The chair is designed for users approximately 5'4" to 6'5".
How does the lumbar support work?
It provides precise support for both lumbar and sacrum areas, helping reduce pressure and improve posture.
Can the seat be adjusted?
Yes, the seat slides forward and backward to optimize thigh support and sitting posture.
Does it recline?
Yes, it features four recline positions: 90°, 105°, 120°, and 130° with adjustable tilt tension.
USER FIT & DIMENSIONS
ProtoArc EC300 Ergonomic Office Chair
Recommended User Height: 5'4"–6'5"
Weight Capacity: 280 lbs (127 kg)
Seat Depth Adjustment Range: 50mm / 1.97"
Backrest Height Adjustment: 5 positions
INCLUDED COMPONENTS
EC300 Ergonomic Office Chair, Headrest, Armrests, Seat Cushion, User Manual
SPECIFICATIONS
Lumbar Support: Precise lumbar & sacrum support
Seat Cushion: High-density foam (55 density)
Headrest: 3D dual-axis adjustable headrest
Recline Positions: 90° / 105° / 120° / 130°
Tilt Tension: Adjustable
Base: Durable alloy base
Gas Lift: SGS Class-4
Casters: 60mm quiet-roll casters
Material: Mesh back with foam cushion
