Foursquare Adams Snowboard Jacket

What exactly does 15,000mm/10,000g mean on the Foursquare Adams? What it means is it is a tightly sealed package of MicroShield fabric finish for an impermeable waterproof outer fabric with a breathable inner membrane that drives out moisture for a dry and comfortable ride. Or more simply put, top of the line.
Key Features of the Foursquare Adams Snowboard Jacket: 10,000mm Waterproof 10,000g Breathability Series: Shell Material: 2L MicroShield Nylon dobby fabric Fully taped seams Removable Hood Removable powderskirt Stretch wrist warmers