Boss B580 The Web Chair is elegantly upholstered a unique "Web" mesh material which allows air to pass through, adding to long-term comfort by preventing body heat and moisture build up. It distributes weight evenly and provides the perfect level of back support by conforming to each individual's back shape. As with any fabric material, the "web" mesh will stretch and loosen the tension over extended periods of usage. Includes Boss patented "Web Tension Knob" that allows the user to tighten or loosen the tension of the mesh material with a few simple twists. This is a unique feature you will find only on the Boss Web Chair.

• Upholstered with a unique "Web" mesh material
• The seat surface and outer back area upholstered with LeatherPlus (polyurethane-infused leather)
• "Web Tension Knob" (located underneath the seat) allows the user to tighten or loosen the tension of the mesh material with a few simple twists
• Adjustable tilt tension provides more stability and back support while you recline allowing the correct pressure for comfortable movement when reclining and leaning forward in the chair
• Adjustable height armrests
• Pneumatic gas lift provides instant height adjustment of the seat
• Large 27” nylon base for greater stability with hooded double wheel casters
• Optional chrome base available

• Arm Height: 24.5 - 31" H
• Seat Size: 20" W x 20.5" D
• Seat Height: 18 - 21.5" H
• Overall Size: 27.5" W x 27" D x 41.5 - 45" H
• Weight Capacity: 250 lbs
• Weight: 39 lbs
• Part No: Black (B580), Black with chrome base (B580-C)