Thermal Base Layers

U.S. Issue Level 1 Silk Weight Thermal Bottom The U.S. Silk weight Thermal Bottom is a base layer that is designed to wick moisture while providing warmth. Designed as Part of the ECWCS (Extended Cold Weather System) for the military as a base layer...

USMC XGO FROG Cold Weather Base Layer Thermal Bottom   Military Issued FROG (Flame Resistant Organizational Gear) Cold Weather base layer pants was made as part of the cold weather clothing system. Manufactured by XGO for the USMC, it was...

USMC XGO FROG Silk Base Layer Thermal Shirt The Military Issued USMC FROG (Flame Resistant Organizational Gear) is a Cold Weather Base Layer Thermal shirt that is part of the military cold weather clothing system (ECWCS).  Manufactured by XGO...

USMC XGO FROG Grid Fleece ThermalPullover Top The USMC Grid Fleece thermal top known as F.R.O.G. (Flame Resistant Organizational Gear) is a standard issue mid layer thermal shirt that will keep you warm while being highly breathable with no-drip,...