NSA PolarShield FR Long Underwear BSBFWPS

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Custom Made in USA, Please Allow 5 Days to Ship
0.73 LBS
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The BSBFWPS by NSA is PolarShield FR long underwear. Made with patented 9.6oz PolarTec Power Grid four way stretch fabric that will not melt, drip or ignite, these long johns meet both ASTM F1506 and NFPA 70E-2015 standards. Flat lock seams for maximum comfort and grid fabric technology allows for superior breathability and high performance moisture wicking. These long johns provide warmth without the extra fabric weight.


  • Available in Sizes: SM, MD, LG, XL, 2XL, 3XL
  • ARC Rating 15 cal/cm2
  • HRC 2
  • ASTM F1506
  • OSHA 29 CFR 1910.269
  • NFPA 70E-2015
  • CSA Z462-15
  • Flat Lock Seams for Maximum Comfort
  • Four-Way Stretch for Ultimate Comfort and Flexibility
  • Grid Fabric Technology
  • Allows Superior Breathability
  • High Performance Moisture Wicking
  • Warmth without the Weight
Size Chart
Size Chart