Name: CORE ONE Ergonomic Chair
Brand: GT Omega
SKU: GTO-COREONE
Price: 59.95 GBP
Availability: InStock

Essential

CORE ONE

Office Chair

£59.95£119.95

A clean, capable chair for shorter work sessions and lighter use.

Lumbar: Fixed contour
Tilt: Basic recline
Armrests: Height adjustable

Height fit

5′2″ – 6′0″

5′0″5′4″5′8″6′0″6′4″6′8″

Weight

Up to 110 kg

Material

Mesh back · Fabric seat

Height 5′2″–6′0″

Weight 110 kg

SHOP CORE ONE

Recommended

MOST POPULAR

ON-22

Ergonomic Chair

£99.95£149.95

Real adjustability and breathable mesh for full-time WFH.

Lumbar: 3D adjustable
Headrest: 3D adjustable
Tilt: Multi-function · 3 lock points
Armrests: Height adjustable

Height fit

5′6″ – 6′6″

5′0″5′4″5′8″6′0″6′4″6′8″

Weight

Up to 136 kg

Material

Full breathable mesh

Height 5′6″–6′6″

Weight 136 kg

SHOP ON-22

TOP OF RANGE

MASTER

Ergonomic Chair

£199.95£249.95

Everything from the ON-22, plus a sliding seat and your choice of mesh or fabric seat.

Lumbar: 3D adjustable
Headrest: 3D adjustable
Tilt: Multi-function · 3 lock points
Seat depth: Sliding · adjustable depth
Armrests: Height adjustable

Height fit

5′6″ – 6′6″

5′0″5′4″5′8″6′0″6′4″6′8″

Weight

Up to 136 kg

Material

Premium mesh · Mesh or fabric seat

Height 5′6″–6′6″

Weight 136 kg

SHOP MASTER

Product Information

Description

Reliable ergonomic essentials for everyday desk use. The CORE ONE pairs a breathable mesh backrest with a comfortable fabric seat, plus the core adjustments you need to stay supported through work or casual gaming. With height adjustment, tilt/recline lock positions, and height-adjustable armrests, it’s a simple, dependable upgrade from basic chairs.

Key Features

✓ Breathable Mesh Backrest + Fabric Seat – Mesh improves airflow through long sits, while the fabric seat provides a softer feel for everyday comfort

✓ Tilt/Recline with Locking Positions – Switch between upright focus and relaxed sitting with lockable tilt positions for stable support throughout the day

✓ Height Adjustment – Set the correct seat height for your desk to support a more neutral sitting posture

✓ Height-Adjustable Armrests – Adjust arm height for consistent forearm support, helping reduce shoulder tension during keyboard and mouse use

✓ Essential Lumbar Contour – A shaped backrest contour designed to support a natural seated posture during everyday use

WIDTH 51cm

HEIGHT 109cm

LENGTH 59cm

CORE ONE Instructions

PDF

CORE ONE Dimensions

IMG

Shipping costs are calculated at checkout based on item size, order contents and delivery location. All orders are dispatched from Glasgow, Scotland.

SMALL ITEMS from £4.95

STANDARD SHIPPING from £9.95

LARGE ITEMS & ORDERS from £29.95

Offshore locations: additional £80 surcharge on large items and orders. Gift Cards have no shipping cost.

ORDER CUT-OFF TIMES

BEFORE 1PM GMT · MON-FRI Same day dispatch

AFTER 1PM OR WEEKEND Next working day

Delivered via FedEx, Parcel Force, UPS, DX Delivery or Royal Mail. Transit time 1–5 business days.

14-day returns · 18-month warranty on cockpits & chairs · 1-year on accessories.

Full shipping & returns policy →