Outer shell definition
Outer shell means the exterior layer of material on the fire coat and protective trousers which forms the outermost barrier between the fire fighter and the environment. The outer shell is attached to the vapor barrier and lining and is usually constructed with a storm flap, suitable closures, and pockets.
Examples of Outer shell in a sentence
Outer shell fabric shall consist of 7.5 oz/yd2 virgin 40/60% PBITM/KelvarR ripstop-weave fabric with a total thread count of not less than 75 or more than 100 threads/in2, reinforced with not less than five nor more than seven warp yarn pattern repeats/inch, and not less than four nor more than six fill yard pattern repeats/inch, treated with water repellent finish.