Phase 4 Base Layer Antimicrobial Shirt

Advanced Performance, Built for Endurance Ideal for Tactical Training, Outdoor Adventure, Hunting, and Cold-Weather Operations The Phase 4 Base Layer Zip Mock Shirt delivers elite-level comfort and performance for those who train, work, or operate in demanding environments. Crafted from an 87% Acclimate Dry Polyester / 13% Spandex Lycra blend, this mid-weight layer provides superior moisture management, flexibility, and durability. The brushed interior fleece traps warmth while maintaining breathability, making it ideal as a stand-alone top in cool weather or a mid-layer in cold conditions. Engineered with XGO’s Quattro Fleece technology, the Phase 4 offers 4-way stretch for unrestricted movement and all-day comfort. Integrated Ag47® Silver Anti-Microbial Protection resists odor and bacteria, ensuring lasting freshness during extended wear. Flat seams prevent chafing under gear, and a longer torso design keeps the shirt securely tucked during intense activity. Trusted by U.S. military