Authentic USMC Issue Thermal Protection

This is the real deal—genuine USMC FROG (Flame Resistant Organizational Gear) Silk Weight Base Layer Bottom, issued to Marines for extreme-environment operations. Engineered for performance when it matters most.

Built for Extremes

The silk-weight construction delivers exceptional warmth-to-weight ratio, providing critical thermal regulation without bulk. Whether you're facing high-altitude cold or desert temperature swings, this base layer performs.

Proven in the Field

FROG gear has been battle-tested in the world's harshest environments. This isn't fashion—it's functional equipment designed to protect and perform. Each piece carries the heritage of Marine Corps excellence.

Condition: Authentic military surplus. May show minor signs of previous issue but remains fully functional and ready for duty.