DCP-2555 or 2.5mm Coax connectors, originally pioneered by the Warm & Safe Heat-Troller people, have become the standard for pretty much all heated clothing manufacturers. DCP-2555 coax connectors have a barrel size of 5.5mm and a hole (male plug) of 2.5mm.Yes, heated clothing from Gerbing, H-D, Firstgear, Powerlet, Warm & Safe and many others all use this same connector.

Coax Adapters