Not to be outdone by the Army, the US Marine Corps is evaluating upgrades to their Mountain Cold Weather Clothing & Equipment Program in Norway this Winter.
The MCWCP is a family of cold weather clothing items designed to support Marines operating in wet/cold and dry/cold or mountainous environments with a threshold temperature range from 4.4 to -31.6 °C (40 to -25 °F) when used as a system. The objective temperature range extends down to -37.2°C

Specifically, they are looking at product improvements to Level 1 and 3. They are also exploring mesh underwear for level 1. For Level 3 they want to enhance wicking/moisture transport and drying time and to decide whether it should be wool or synthetic.
There’s a Softshell uniform solution for insulation being evaluated as well. It is quick drying and more breathable than APECS meaning less sweat buildup and condensation inside the garment.
The Marines are also looking at a new balaclava and Extreme Cold Weather Cap as well as handwear systems.
Their handwear evaluation includes a Contact Glove, Intermediate Cold Weather Glove, Extreme Cold Weather Mitten, and Inserts.
Additionally, the Marines are apparently evaluating the Norwegian cold weather “system” which is actually a collection of cobbled together items. Considering the Norwegians are currently in source selection along with Denmark, Finland, and Sweden for the Nordic Combat Uniform, the Marines’ efforts seem to be a waste of time. Even the Norwegians know their clothing needs to replaced so you wonder if it’s not a throwaway, in order to validate current Marine systems as superior.
At any rate, data collected across all efforts will help shape the future of MCWCEP.