Outer Shell 1 : The outermost component of an ensemble element or item, not including trim, hardware, reinforcing material, pockets, wristlet material, accessories, fittings, or suspension systems
NFPA 1851 Standard on Selection, Care, and Maintenance of Protective Ensembles for Structural Fire Fighting and Proximity Fire Fighting, 2008 ed. http://www.gearwash.com/pdf/NFPA-1851-2014-Edition -List-of-Changes.pdf, (Std: Selection, Care and Maint of Prot Ens for Stru Fr Fight and Proximity Fr Fight - Amer) {411 NFC}