Applied Response Solutions
Chempak Ultra Barrier, Chem Bio Boot Liner/Over sock

The IFS is an easy to use, comfortable, and effective protective boot liner that minimizes the warfighter’s exposure to chemical and biological warfare agents. The IFS boot liner is worn to afford protection against chemical warfare agent vapors, aerosols, and small droplets for a minimum of 10 days (160 hours).  Upon exposure to chemical agents, the IFS boot liner provides at least 24 hours of protection from agent penetration. The Chempak boot liner is designed to be worn over a standard combat sock. The Chempak boot liner is extremely thin and lightweight requiring no upsizing of footwear and is compatible with all standard service footwear.


Material Description

The IFS boot liner is made from a fabric laminate comprised of a protective moisture vapor breathable, selectively permeable film with thin nylon knit fabrics adhered to both sides. The knit fabrics provide abrasion resistance during wear. The selectively permeable film is a bi­-component structure consisting of an expanded polytetrafluoroethylene (ePTFE) membrane structure impregnated with a protective polymer system. The selectively permeable film allows moisture vapor transport of perspiration from the foot, through the fabric, and away from the body. This material provides the user with comfortable, cool, dry feet along with excellent agent protection.  In addition, the lightweight, flexible material provides immediate comfort and reduces break­in time for the user. 

Technical Characteristics

24 hours of protection once contaminated by chemical agents.
Ten-­day (160 hours) wear durability.
Moisture vapor permeable for comfort.
Protection maintained after exposure to commonly encountered petroleum and hydrocarbon ­based substances.

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