National Safety Apparel DF2-CM-446LS-DS-LG Fr Base Layer Shirt

Product Description

The NATIONAL SAFETY APPAREL DF2-CM-446LS-DS-LG is a flame-resistant base layer shirt designed for industrial and hazardous work environments where arc flash or flash fire protection is required. Constructed from nylon, this shirt features a zipper closure and fits a chest size of 38 to 42 inches, corresponding to a Large sizing. It carries a Hazardous Protection Level 1 rating. Licensed HVAC technicians, electricians, and other trade professionals working in arc-rated or FR-required environments wear this garment as a foundational layer under outerwear PPE. The lightweight nylon construction is intended to maintain comfort during extended shifts while meeting relevant flame-resistance standards.

This base layer shirt is suited for residential and commercial job sites where NFPA 70E, NFPA 2112, or employer FR-clothing mandates apply. It is appropriate for electricians, utility workers, petrochemical technicians, and other trades operating in environments with flash fire or arc flash exposure. The zipper closure allows for quick donning and removal, which is practical in layered PPE systems. Its tan color and clean profile make it compatible with a range of outer FR garments.

Key Features

• Flame-resistant and flame-retardant nylon construction meets Hazardous Protection Level 1 requirements
• Chest sizing of 38 to 42 inches fits Large frames
• Zipper closure for straightforward donning and removal
• Zero pockets for a low-profile, snag-reduced base layer fit
• Tan colorway compatible with standard FR outerwear layering systems
• Lightweight at 0.63 pounds for all-day wearability under outer PPE

Compatibility

Designed as an FR base layer garment for use in layered personal protective equipment systems where Hazardous Protection Level 1 flame-resistant base layers are specified.

Installation Notes

This garment should be inspected before each use for damage, tears, or contamination that could compromise flame-resistant performance. Follow the manufacturer laundering instructions to preserve FR properties — washing with incompatible detergents or fabric softeners can degrade protective performance. Do not wear over non-FR undergarments in environments where the full layered system must meet a rated protection level. Consult your site safety officer or PPE program requirements to confirm this garment meets the specific arc flash or flash fire hazard category for your work task.