Portwest UMV21 Arc Rated FR Mesh Vest Yellow

The Portwest UMV21YER is a high-visibility, arc-rated vest designed to provide flame-resistant protection in hazardous environments. Constructed from an inherently flame-resistant knit blend of 60% Modacrylic, 39% Cotton, and 1% Carbon Fibre, this vest maintains its FR properties over time and through laundering. The fabric is a 5.5 oz modacrylic mesh with a characteristic lightweight hand that supports extended wear in warm conditions while meeting recognized safety standards through its multi-standard FR performance.

Key features include ARC1 arc rating capabilities, 2-inch flame-resistant reflective tape for enhanced visibility, and a hook-and-loop closure for a fast, adjustable fit. The vest includes one internal pocket and is intended to be worn over ARC-rated clothing only, not over non-ARC resistant apparel. These details are important because they define compatible PPE ensembles and ensure the garment performs as part of a compliant arc-rated system rather than as a stand-alone layer.

Recommended for use in sectors where arc flash exposure is a concern and where flame resistance is required, the vest aligns with standards such as NFPA 70E and ASTM FR certifications, and is offered in high-visibility lime to improve on-site conspicuity. When selecting sizing and packaging, note that the product is sold as each piece with a case quantity of 48, and the product’s utility rests on proper pairing with suitable ARC-rated base layers. For best results, verify that your complete PPE ensemble—vest, base garments, and outerwear—meets the applicable safety requirements and that the fit accommodates layering without compromising movement or visibility.

Features:

• ARC1
• 2" flame resistant reflective tape
• Flame Resistant modacrylic (5.5oz) mesh
• Inherent flame resistant qualities will not diminish
• Hook and loop closure
• Pockets: 1 internal
• To be worn over ARC rated clothing only
• Not meant to be worn alone or over non-ARC resistant apparel