2 inch fire hoses are typically used when higher water flow is desired in comparison to the 1.5" inch hoses. It's constructed from canvas polyester to give added strength and performance. The single jacket layer means less weight to haul around, giving you more flexibility. They are for sale right here.
EAGLE MILL 2 In x 50 Feet Single Jacket Fire Hose Female-Male
Dixon® A315-100UC Single Jacket Uncoupled Fire Hose
Fire Hose vs. Mill Hose
Choosing a Fire Hose Single Jacket, Double Jacket, or Rubber
Pollardwater 2 in. x 50 ft. Single Jacket Mill Discharge Hose MxF
2 Double Jacket 800# Test Fire Hose - Smoky Mountain Fire
1-1/2 Inch X 25 Feet Fire Hydrant Hose –, 45% OFF
Single Jacket HD Mill Fire Hose 50mm X 15m ( 2 X 50-Feet
Single Jacket Industrial Fire Hose 40mm X 30m ( 1-1/2 X 100-Feet