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The MCCS is a two tier system that covers the thorax, head, neck and arms.

The torso represents the main heatsink for managing core temperature. The Level 1 consists of wearing the evaporative cooling vest, which soaks and retains water from an initial soaking to cool for hours/days but does not wet the underlying “T” shirt. This would likely suffice for cooling (under BDU/DCU blouse) if armor was not worn. To control the greatly increased heat stress from interceptor OTV armor, add the phase change packs to the cooling vest’s pockets as shown in pictures, they will maintain a constant temperature of 58 degrees for 2+ hrs., depending on ambient temperature. These packs are relatively lightweight but made to withstand the extreme abuse of sand abrasion without leaking.

The head cooling consists of the Level 1 evaporative cooling beanie cap, which works comparably to the vest. For additional cooling the Level 2 system for the ACH/kevlar helmet involves properly sized phase change packs, which go directly into the helmet. They are best for the ACH but work equally as well with the kevlar.

The neck piece, consists of a DCU evaporative cooling piece. The neck guard on the interceptor OTV limits the size of neck cooling equipment.

The OTV quick release (QR) clips require a one time installation on the OTV. This requires about 5 minutes and a pocket knife. The QR clips provide benefits beyond the cooling application. Please see photo gallery for detailed installation instructions. The benefits of the QR OTV clips are as follows:

1) allows for exchange of rear packs while on patrol, without removing the protective OTV.

2) Allows comfort waist size adjustments to the OTV while it is being worn

3) Allows medics much easier access to covered wounds. Medical providers from 2/3 Stryker Brigade Combat Team related some difficulty accessing soldier's wounds underneath the standard OTV during their 12 month OIF tour.

This system actually exceeded our expectations when tested. Based on O.I.F. experience, I think this represents the most effective means of controlling heat in a combat environment.

• Provides the best solution available to reduce heat stress
• Keeps you mentally and physically alert
• No need to remove OTV (body armor) to swap out inserts
• Lightweight and comfortable
• Requires no freezing, reactivates in refrigerator or ice water quickly
• Long lasting cooling (58 degrees)
• Non Toxic, Non Carcinogenic, Non Flammable
• Great value pricing