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Flamestretch® Sock System (FR)

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Donned primarily by cold-water rescue divers, the Flamestretch Sock System is designed to be worn under dry suits when warmth and FR protection is critical.

Proud To Partner with Darn Tough for our Sock System.
The Flamestretch® sock system is comprised of two socks. The inner sock liner by Darn Tough® Wool is low-profile, comfortable, provides excellent moisture management, and is warm when wet. The over-sock constructed with Massif Flamestretch fabric is highly breathable and traps heat to keep your feet warm in the harshest conditions.
  • All fabrics pass the stringent ASTM D6413-F2302 performance specification for flame resistance
  • Approved by NAVAIR
  • Authorized by the United States Coast Guard
  • USAF Authorized Safe-To-Fly
  • Full flame-resistant construction with proprietary Massif® fabric
  • High warmth to weight ratio
  • Warm when wet
  • Excellent moisture management
  • Design to work with Massif® Fire and Ice™ layering system
FlamestretchSock (2.17 MB)
Flamestretch® Sock System (FR)