The perfect baselayer, Cool Knit aggressively wicks sweat away from your skin, keeping you cool and preventing saturation. Soft on the inside and abrasion-resistant on the outside, Cool Knit meets NFPA standards for vertical flame resistance. 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® - the first flame-resistant fiber selected for use in military uniforms. 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.
- Full flame-resistant construction with proprietary Massif fabrics
- Proprietary 4-way-stretch construction provides unlimited mobility
- Unique fabric composition wicks sweat away from skin
- Lightweight and highly compressible for easy packing
- Machine washable
- Designed to work with the Massif Fire and Ice Layering System
- Authorized by the United States Coast Guard
- Fabric passes stringent ASTM D 6413 Standard for flame resistance






