U.S. G.I. Phase 4 Heavyweight Base Layer Drawers

When the temperature drops, your gear matters. These Phase 4 Heavyweight Base Layer Drawers are built for those who don’t have the luxury of waiting out the cold. Whether you’re on duty, in the backcountry, or just tackling everyday tasks in freezing conditions, these base layer pants are your first line of defense against the elements. Designed to trap heat while allowing full mobility, they keep you warm, dry, and mission-ready. These drawers excel in moisture management, flexibility, and durability. The Acclimate® Dry technology wicks moisture away at a rate of 3 inches in 3 minutes, ensuring sweat doesn’t turn into an icy chill. Built to meet U.S. military standards, they retain 90% of their wicking properties even after 50 washes. Infused with Ag47® silver anti-microbial protection, these pants eliminate odor and harmful bacteria, keeping you fresher for longer in extended-wear scenarios. Flatlock Clean Seams® ensure an irritation-free fit, and the heavyweight tech face fleece interior delivers next-level softness and warmth. These superb garments were sourced directly from a U.S. government contractor’s overrun. That means this gear is first quality, factory fresh, and built to modern military specifications. Unused condition. Color and styles may vary. Made in the USA.

Expert Tips:

Wear under heavy-duty work pants, tactical gear, or hunting bibs for extreme cold protection. The moisture-wicking fabric pulls sweat away from your skin, preventing chills. Machine wash cold, tumble dry low to maintain softness and elasticity.