The DriFire FR Work Shirt is an extremely lightweight, inherently flame resistant men’s button-down work shirt rated 8 cal/cm2 (CAT 2), built for workers who need arc-rated protection in a dress-style shirt. It meets ASTM F1506, NFPA 2112 (Standard on Flame-Resistant Clothing for Protection of Industrial Personnel Against Short-Duration Thermal Exposures from Fire), and ASTM F1930. DriFire Select fabric provides the shirt’s inherent flame resistance. The protection is built into the fiber and will not wash out or wear off, regardless of how many times the garment is laundered. The exact fabric weight and fiber blend are not specified, so the confirmed 8 cal/cm2 rating, CAT 2 classification, and listed standards are the product-specific values to use for safety and procurement review. The F169Y uses a seven-button front closure, a pleated back yoke, and a banded, top-stitched button-down collar. Its long-sleeve construction and two button-flap chest pockets give it the structure of a traditional men’s dress work shirt. These design elements identify the garment as a button-down work shirt rather than a pullover or base-layer top. Fit details are not specified. Size and length selections are available, and multiple color options are offered without named color details. The extremely lightweight construction is a confirmed product characteristic, but the exact ounce weight and fiber percentages are not specified. Country of origin and fit are also not specified. No tested layered-system rating is listed, so 8 cal/cm2 (CAT 2) is the confirmed rating for the shirt itself. These confirmed values give safety teams a clear basis for garment-level comparison without assigning unsupported material or system ratings. Specific washing temperatures, detergents, and drying settings are not specified. Follow the garment care label. Properly cared for, this garment maintains its flame resistant properties for the life of the garment. The product identifier is F169Y for procurement and catalog matching. The F169Y is priced from $118.00 to $142.00.