USGI Chemical Protective Suit (Class 1) M81 Woodland

US Genuine Issue Chemical Protective Suit for CBRN environments in new unissued condition, in original sealed packaging.  This suit is part of the original Battle Dress Overgarment (BDO) series. It includes both the Coat and Trousers.  M81 Woodland Camouflage pattern.

NSN

• XX-Large: 8415-01-137-1707

Features

• Two-Piece Construction: The set consists of a hooded jacket and high-waisted trousers. It is intentionally oversized to fit comfortably over a standard Battle Dress Uniform (BDU) and field gear.
• Activated Charcoal Liner: The interior is lined with a thick, bonded layer of activated charcoal.
• Function: This liner absorbs chemical agents in vapor form before they can reach the skin.
• Side Effect: It is notorious for leaving black "charcoal dust" on the wearer's skin and under-uniform, especially when the suit is new.
• Protection Levels (MOPP): It is the primary component of MOPP (Mission Oriented Protective Posture) levels 1 through 4. When combined with a mask, gloves, and boots, it provides a complete barrier against nerve, blister, and blood agents.
• Jacket: Features a full-length zipper protected by a wide Velcro/snap storm flap. It has an integrated hood with an elastic face opening designed to seal around an M40 or MCU-2/P gas mask.
• Trousers: Equipped with built-in adjustable suspenders, a zippered fly with a protective flap, and large cargo pockets on the thighs.
• Closures: Elasticized cuffs on the wrists and ankles, along with drawstring or Velcro cinch tabs, ensure a tight seal against contaminants.
• Outer Shell: Made of a rugged 50/50 nylon/cotton twill (NYCO) treated with a water-repellent finish.
• Environment: While it provides excellent wind resistance and some warmth, it is very heavy and traps body heat, making it extremely taxing to wear in hot weather environments.
• Service Life: The suit is typically vacuum-sealed in a thick plastic bag. Once opened, its "protective life" begins to countdown (usually 30 days in a contaminated environment or roughly 14–45 days of general wear).