We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

BOSS Office Products

BOSS Office Products B307 Task Chair Black Loop Arms

SKU CH-5ZZB-S2R4Z MPN B307

A task chair with leather-plus upholstery, built-in lumbar support, adjustable seat height and back depth, loop arms, and hooded double-wheel casters

  • TypeTask Chair
  • ColorBlack
  • Selling UnitEach
  • LeatherPlus upholstery blends leather with polyurethane for softness and durability
  • Thick padded seat and back with built-in lumbar support reduce strain
  • Adjustable back depth and pneumatic gas lift personalise sitting height
  • Five-star nylon base with hooded double-wheel casters gives stable mobility
  • Loop arms provide comfortable, natural arm rests

Posture chair with LeatherPlus upholstery

The BOSS B307 is a task chair upholstered in Black LeatherPlus, a leather and polyurethane blend designed for softness and durability. It features a thick padded seat with a waterfall-edge design and a cushioned backrest with built-in lumbar support. A pneumatic gas lift provides adjustable seat height, while the back depth can also be customised. The five-star nylon base and hooded double-wheel casters allow smooth movement across the floor.

Users needing adjustable lumbar and arm support

This chair suits people who want a padded seat with integrated lumbar support and fixed loop arms for resting their forearms. The adjustable back depth helps match different torso lengths. Buyers who need height-adjustable or pivoting armrests should look elsewhere, as the loop arms are fixed. Those requiring a mesh back for airflow or a headrest will not find those features here.

LeatherPlus upholstery material

The seat and back are covered in LeatherPlus, which combines leather with polyurethane for a softer feel and increased wear resistance. This material choice determines the chair's tactile comfort and long-term durability. If a buyer prefers genuine leather only, fabric or mesh, this upholstery will not match that preference.

Highlights

  • LeatherPlus upholstery blends leather with polyurethane for softness and durability
  • Thick padded seat and back with built-in lumbar support reduce strain
  • Adjustable back depth and pneumatic gas lift personalise sitting height
  • Five-star nylon base with hooded double-wheel casters gives stable mobility
  • Loop arms provide comfortable, natural arm rests

Specifications

TypeTask Chair
BrandBOSS Office Products
ModelB307
ColorBlack
Selling UnitEach
Shipping weight12.70 kg
Package size635 × 584 × 330 mm

Questions about this item

How do I set the pneumatic gas lift height and back depth, and what step do people miss?

Pull the lever while seated to raise the seat, release it at the desired height, then pull the back-depth knob, slide the backrest to fit your lumbar curve, and tighten the knob — skipping the knob leaves the backrest loose.

Which parts will wear first and need replacement on the B307?

The hooded double-wheel casters and the LeatherPlus upholstery on the seat, back and loop arms see the most friction and typically need replacing before the gas lift or nylon base.

What comfort limit appears first during a full day of sitting?

The thick padded seat and built-in lumbar support stay comfortable for hours, but the fixed loop arms cannot pivot or slide, so shoulder width or typing posture becomes the limiting factor.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.