• Long John Pant - Fire (FR) and Arc Flash Resistant, Lightweight, Moisture-Wicking Stretch Fabric (PK 2 Underwear Bottom) - National Safety Apparel
DRIFIRE

DRIFIRE Prime FR Long John Base Layer – 4.9 cal/cm², CAT 1

Inherently flame-resistant four-way stretch long john, worn as a moisture-wicking base layer for all-day comfort.

Arc rating
4.9 cal/cm²
CAT level
CAT 1
$103.69
$103.69
Shipping calculated at checkout.
Part no. DF2-CM-762-PLP-RG-SM
Available to order
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$103.69
$103.69
Long John Pant - Fire (FR) and Arc Flash Resistant, Lightweight, Moisture-Wicking Stretch Fabric (PK 2 Underwear Bottom) - National Safety Apparel
$103.69
$103.69

Overview

The DRIFIRE® Prime FR Long John is an arc-rated stretch base layer with an athletic cut for all-day wear. It is inherently flame resistant, so its protection will not wash or wear out.

Key details

  • Arc rating4.9 cal/cm², CAT 1
  • Flame resistanceInherent: protection will not wash or wear out
  • Fabric6.5 oz DRIFIRE Prime with four-way stretch
  • Sun protectionUPF 50+, blocks up to 99.5% of UV radiation
  • ColorGrey

The lightweight fabric wicks moisture and dries quickly, odor control keeps it fresh, and offset flat-locked seams prevent rubbing. Four-way stretch moves with you.

Sizes SM to 3X.

Care: machine wash warm (max. 140°F) with mild detergent and tumble dry medium. No ironing, chlorine bleach, hydrogen peroxide, fabric softener or starch.

Protection & compliance

Arc flash
  • Arc rating4.9 cal/cm²
  • PPE CategoryCAT 1
  • ASTM F1506Arc-rated flame-resistant protective clothing
Workplace electrical safety
  • NFPA 70EArc-flash workplace safetyA workplace standard reference, not independent product certification.
  • CSA Z462Electrical workplace safetyA workplace standard reference, not independent product certification.
  • OSHA 1910.269Electric power generation, transmission and distribution safetyA workplace regulation reference, not independent product certification.