GI USMC FROG Thermal Undershirt

Designed for the Marine Corps' Flame Resistant Organizational Gear (FROG) system, this thermal undershirt offers exceptional warmth, moisture-wicking properties, and flame resistance.

Its lightweight, breathable fabric provides a snug yet comfortable fit, making it ideal as a base layer for cold-weather missions or outdoor adventures. Built to military specifications, this undershirt ensures durability and performance when you need it most.

• 78% Modacrylic, 22% FR Rayon silkweight fabric

• Rated down to 14 °F

• Fire-Resistant

• Moisture-Wicking

• Genuine US Military Issue

• Made in USAN

• SN: 8415-01-567-4525