Specifications include, but are not limited to: STRUCTURAL FIRE FIGHTING COAT SPECIFICATIONS 2.1 Coat Construction 2.1.1 The coat shall be designed to provide maximum functionality and mobility and relieve firefighter working stress. 2.1.2 The pattern shall include underarm gussets and darts in the elbows for unrestricted movement. 2.1.3 The shoulder seams on shell and liner shall be placed close to the collar to mimic the natural location of the shoulder joint and minimize coat rise and extend range of motion when wearing an air pack. 2.1.4 The coat sleeve shall be naturally tapered designed and manufactured to provide unrestricted movement while bending the arm. 2.1.5 The thermal/moisture barrier liner shall be specially designed to work in conjunction with the shell with a fuller cut pattern. 2.1.6 All seams joining the main body panels shall be felled and double needle lock stitched. The stitch type shall be 401, double lock stitch, as defined by Federal Standard 751a and seam type LSC-2 as defined by Federal Standard 751a. 2.1.7 All seams shall be 100% Tex 80 Nomex® thread. 2.2 Standard Thermal Reinforcement 2.2.1 A patch of thermal lining material shall be sewn to the thermal liner at the top of the shoulders and at the elbows to provide enhanced thermal protection and to meet NFPA 1971 CCHR requirements for those areas. 2.2.2 Thermal material shall be included on the liner behind all trim, reinforcements and patches on the sleeves to meet requirements of Stored Energy test. 2.3 Sleeves and Underarm Gussets 2.3.1 Sleeves shall incorporate a tapered design shaped to follow the natural contour of the arm. 2.3.2 Each coat shall incorporate an underarm gusset that measure approximately 7" wide X 12" long (graded to coat size). 2.3.3 The attachment point of the sleeves to the coat body panels shall provide optimal mobility when donning an SCBA while minimizing coat rise. 2.4 Inner Sleeve 2.4.1 A liquid resistant water well shall be sewn into the sleeve end to prevent liquids and other hazardous materials from entering when the arms are raised. 2.4.2 Two Layer Nomex® wristlets shall be sewn to the water well inside the sleeve. 2.4.3 Two Polymer-coated aramid (PCA) tabs will be sewn in at the union of the sleeve water well and the knit wrist on the underside of the sleeve. 2.4.4 A layer of quilted Nomex® thermal lining material shall be lock stitched to the underside of the shell, between shell and water well, to provide continuous thermal protection at the sleeve and reduce the risk of steam burns under the cuff trim.