Big Bill

Big Bill FR UltraSoft Insulated Coveralls M800US7

3.60 LBS

$400.00 - $480.00


The M800US7 by Big Bill are flame resistant insulated coveralls made with Westex UltraSoft FR fabric.  This style design features 2 chest pockets, 2 slash inside front pockets at the waist, 2 large back pockets and a telescopic back for more comfort.  A heavy-duty, 2-way concealed nomex taped brass zipper secures front closure.  These CAT 4 FR coveralls have an Arc Rating ATPV of 52 cal/cm² and meet NFPA 70E.


  • Arc Rating: ATPV 52 cal/cm, CAT 4
  • NFPA 70E
  • CSA Z462
  • 7 oz. Westex UltraSoft Fabric, 88% cotton / 12% Nylon
  • 10 oz. Westex InsulAir, Face Cloth - Indura 100% Cotton, Batting - 80% Silica Rayon / 20% Polyester
  • Heavy-Duty, Two Way Concealed Nomex Taped Brass Zipper Front and Leg Closures
  • Storm Flap with Hidden Snap Over Front and Leg Zipper Closures
  • 2 Chest Pockets (Pencil Division on Left Chest Pocket)
  • Nomex Tricot Inside Cuffs
  • 2 Slash Inside Front Pocket at Waist
  • Telescopic Back for More Comfort
  • 2 Large Back Pockets
  • Available in Medium to 3XL and in Regular and Tall Sizes
  • Available in Color Navy
Size Chart
Size Chart
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Additional Information

FR Certified:
NFPA 70E, CSA Z462, CAT 4
Arc Rating:
52 cal/cm²
7 oz. Westex UltraSoft® (88% Cotton / 12% Nylon), 10 oz. Westex Insulair® (Face Cloth: Indura® 100% Cotton, Batting: 80% Silica Rayon / 20% Polyester)
Insulated, Telescopic Back
Heavy Duty Two-Way Concealed Nomex Taped Zipper
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