Available in colour: Royal Blue  FabricNomex Work Shirts are made of Flame resistant, 6.0 oz plain weave NOMEX® IIIA  FeaturesSeven Melamine button front closuresTwo-piece, banded, lined, topstitched collar with top button closuresTwo-piece lined top stitched cuffs with adjustable button closuresCenter pleat placket front-facingTwo large pockets with button close flaps, pencil stall in left pocketSewn with NOMEX® threadRoomy comfortable fitTailored sleeve placketTwo-needle construction and styling Autoclaved  Arc Rating 5.2 ATPV  Applications Nomex work shirts are used in petrochemicals, utilities, military applications, auto racing, volunteer and professional fire fighters. Flame Resistance Work shirts constructed of NOMEX® are inherently flame resistant and this property can not be degraded by laundering.SIZING CONVERSION CHARTSize  Small   Med  Large    XL   2XL   3XLChest  32½-36 36½-40 40½-44 44½-48 48½-5252½-56Neck  14-14½15-15½16-16½17-17½18-18½19-19½RG Sleeve Length     33  33½    34  34½    35    35LN Sleeve Length    35½  35½    36    36    36    36 * These refer to actual body measurements. Chest size is taken at the fullest point of the chest, keeping tape under arms and around shoulder blades. Please phone customer service at 1-888-440-4668 if you require assistance.