The Massif® Cool Knit® T-shirt, made with DuPont™ Nomex® brand fiber, is Massif's lightest flame-resistant performance base layer.
The perfect base layer, the Cool Knit® T-Shirt aggressively wicks sweat away from your skin, keeping you cool and preventing saturation. The lightweight four-way stretch bottom has a trim fit, retains its shape over time, and is highly compressible for easy stuffing when you're living out of a pack. 
Constructed with DuPont™ Nomex® brand fiber - the first flame-resistant fiber selected for use in military uniforms. DuPont™ Nomex® fibers carbonize and thicken when exposed to the intense heat of a flash fire, creating a protective barrier that reduces or prevents burn injuries. The Cool Knit T-shirt is so soft and comfortable that you'll forget it is FR.
Product Features:
- Full flame-resistant construction with proprietary Massif® fabrics
 - 4-way stretch
 - Excellent moisture management
 - Lightweight
 - Highly compressible
 - Designed to work with the Massif® Fire and Ice™ Layering System
 - 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