From Via Seating:

Let your imagination take the lead with Run II—Via Seating’s most budget-friendly task & conference chair, designed without compromise. Offering exceptional comfort & ergonomic support, its seat—available in medium or large—features plush comfort foam with a waterfall edge for all-day relief. Choose from a mid back, high back, guest chair, or task stool, all available in sleek black or modern magnet grey framework. Whether in a private office, conference room, or collaborative space, Run II delivers stylish versatility & lasting performance at an unbeatable value.

Model: Run II Mid Back with Medium Seat
Frame Color: Magnet Gray
Control Mechanism: Single Rotation Synchro Control Mechanism with Seat Depth Adjustment
Optional Arm: Gray Basic Height Adjustable Arms
Base: Magnet Gray Nylon Low-Profile 5-Star Swivel Base
Casters: Gray-Black All Floor Casters
Optional Lumbar Adjustment: Gray Vertically Adjustable Lumbar Support
Mesh Color: Gray
Seat Textile: Origin by Momentum Textiles
Seat Textile Color: Iron (Gray)