United’s heavy weight flame resistant base layer

• Flat seam construction eliminates chafing from gear
• Antimicrobial protection resists odors
• Wicks moisture for comfort & dries fast
• Made in the U.S.A. — Berry Compliant

Fortiflame® Layer IV fabric is a blend of modacrylic/rayon/ nylon yarns at 8.0 oz./sq. yard. This single-sided fleece fabric is inherently flame resistant and has “0” after flame or melt/drip during test method ASTM D 6413-11. The garment has a smooth outer layer for ease of layering and is soft against the skin for comfort. It will provide maximum protection in extreme environments, while meeting stringent flame resistant standards. Fortiflame® Layer IV fabric will keep the wearer dry from excessive moisture and is treated with an antimicrobial to resist odors.

About United Join Forces:
United Join Forces by United Associates is one of the U.S. military's most trusted manufacturers of cold weather and flame-resistant apparel, including multi-level base layer systems and thermal underwear worn by military personnel in the U.S. Air Force, U.S.C.G. / Coast Guard, Army, Navy, and Marines. United has a range of performance fabrics designed to lock in warmth while keeping the user warm and dry in the toughest climates, as well as flame resistant base layer garments that provide moisture-wicking and insulation while extending protection against flash fires when worn as part of an appropriate flame-resistant clothing ensemble.