Designed for use by the US Military, these coolers are built tough to endure any environment.

Thick-walled insulation provides a strong thermal barrier to the elements.

The M-Series drain plug is oversized with a rubber over-mold and is designed to provide grip to gloved or bare hands.

The robust latches are borrowed from the hatch securement on the Bradley Fighting Vehicle platform.

Thier chamfored lids, non-skid feet and interlocking/stackable design makes suitable for air or ground transport in single or multiple quanitities.

The M-Series is the cooler that started it all, and has "been there" and "done that" around the globe.