The aptly named Cool Knit Bottoms aggressively wicks sweat away from your skin, keeping you cool and preventing saturation. Cool Knit meets NFPA standards for vertical flame resistance, but it's so soft and comfortable you'll forget it's flame-resistant. This lightweight four-way-stretch fabric has a trim fit, retains its shape over time, and is highly compressible for easy stuffing when you're living out of a pack. Wear alone or as a light base layer. Constructed with DuPont Nomex brand fiber, 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.

Features of Men's Massif Cool Knit Bottoms

• Berry Compliant
• GSA Compliant
• Made in the USA
• Authorized by the United States Coast Guard
• Meets or exceeds ASTM D6413/F2302 Performance Specification for Flame Resistance
• Meets or exceeds ASTM F1506
• Meets or exceeds ARC Rating, EBT: 4.0 cal/cm2, HRC 1
• Full flame-resistant construction with proprietary Massif fabrics
• Four-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