Miller AirCore Front D-ring Harness

The Miller AirCore™ Harness was specially designed for the most demanding applications of professional users. Now available with a front D-ring, the harness is perfect for ladder climbing, descent or rescue positioning tasks, improving comfort, safety and productivity on the jobsite.

The AirCore™ harness is built with strong, lightweight webbing and a front D-ring that is highly corrosion-resistant, yet not stiff or coarse.

Ergonimic Design
Its contoured design minimizes contact around a worker’s neck, lower back, and inner thighs to reduce chafing and improve comfort.





  • Open-core padding technology for softness, breathability, and moisture control
  • Up to 16% less surface area than other padding used on the market
  • The patented Miller DuraFlex® stretchable webbing maintains comfort at all times without compromising on mobility


  • Unique cam buckles on the shoulder straps ensures vertical comfort
  • Quick-connect chest buckles provide easy donning and doffing
  • 16% lighter in weight than competitive harnesses with aluminum hardware
  • 20% lighter than harnesses with steel hardware
SKU Side D-Rings Leg Straps Lumbar Pad/Removable Belt Weight
ACF-TBUG No Tongue Buckle No 4.1 lbs. (1.86 kg)
ACF-QCUG No Quick Connect No 4.1 lbs. (1.86 kg)
ACF-TBDUG Yes Tongue Buckle No 4.8 lbs. (2.18 kg)
ACF-QCDUG Yes Quick Connect No 4.8 lbs. (2.18 kg)
ACF-TBBDPUG Yes Tongue Buckle Yes 6.2 lbs. (2.81 kg)
ACF-QCBDPUG Yes Quick Connect Yes 6.2 lbs. (2.81 kg)

To order AirCore Front D-ring Harnesses with aluminum hardware, replace the “C” in the model number with “A” (ex. AAF-QCUG)