Sinatra Undervest Short Sleeve Base Shirt

Duty-ready comfort, built for the base layer. The Sinatra Undervest Short Sleeve Base Shirt combines the functionality of patrol uniforms with the comfort of a true base layer — engineered for all-day wear under external carriers with advanced moisture management and breathable construction that keeps you cool, dry, and professional through every shift. This lightweight upper fabric provides breathability, moisture management, durability, comfortable stretch, and shape retention. Upper Fabric 50% Wool / 48% Moisture-Wicking Polyester / 2% Lycra Lower Fabric Polyester Exterior / Cotton Interior Sleeve Short Sleeve Protection UV Protected 01 Professional Features Moisture Management Advanced fabric technology wicks moisture away to keep you dry throughout long shifts. Stain Resistant & UV Protected Built-in stain resistance and UV protection keep the shirt looking sharp and protect you on duty. Vented Back Yoke Air mesh lining and underarm mesh panels boost airflow where you need it most. Wrinkle Free & Odor Control Stays crisp and fresh shift after shift, resisting wrinkles and controlling odor. Bicomponent Construction Cotton interior for next-to-skin comfort paired with a durable polyester exterior. Base Layer Design Made to be worn all day under external carriers without sacrificing comfort or performance. 02 Find Your Fit Option Details Upper Body Material 50% Wool / 48% Moisture-Wicking Polyester / 2% Lycra Lower Body Material Polyester exterior, cotton interior Sleeve Length Short Sleeve See our full sizing guide. 03 Comfort & Performance Moisture wicking Stain resistant & UV protected Vented mesh airflow Wrinkle free & odor control