The snow camouflge mitten shells are used as the handwear camouflage cover when worn over the trigger finger mitten shells, and arctic mitten set in snow environments.

The Marine Corps has developed an Extreme Cold Weather Mitten System including a Mitten Shell with Removable Liner and Light Duty Flame Resistant Glove Insert, which will provide improved environmental protection over USMC's previous mitt, the insulated trigger finger mitt.

The improved cold weather trigger finger mitten is light weight, reduced bulk, hydrophobic, quick drying, and designed with a trigger finger for weapon operation.The mitten is intended to be used in temperatures ranging from +10 to -25°F (-12 to -32°C). The mitten is compatible with the snow camouflage mitten shells and improved glove insert, and replaces the trigger finger mitten shells and inserts.

The mitten inserts are intended to be worn under the trigger finger mitten shells.

The mitten set is intended for use with other component of arctic clothig under cold dry conditions.

The trigger finger mitten shells are to be worn with or without the wool/nylon mitten inserts and in areas too cold for leather gloves and not sufficiently cold for arctic mittens.

Military specification MIL-M-2418 covers one type and size of white mitten shells.

Military specification MIL-M-809 covers an ambidextrous, knitted, trigger finger, mitten insert.

Military specification MIL-M-810 covers one type of mitten shells with trigger finger.

Military specification MIL-M-834 covers one type of arctic mitten set consisting of outer shells, liners, and a harness.

This performance specification covers the requirements for the Marine Corps Extreme Cold Weather Mitten System with Insulated Removable Liner.