Duty-ready comfort, built for the long haul. The Sinatra Undervest Long Sleeve Base Shirt combines the functionality of a patrol uniform with the comfort of a true base layer — engineered for all-day wear under external carriers with advanced moisture management, breathable construction, and durable materials that keep you cool, dry, and professional through every shift.
01 Professional Features
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Moisture Management
Advanced fabric technology wicks moisture away to keep you dry and comfortable throughout your shift.
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Stain Resistant & UV Protected
Guards against stains and sun exposure so the shirt stays sharp-looking, shift after shift.
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Vented Back Yoke
Air mesh lining and underarm mesh panels boost airflow to keep you cool under external carriers.
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Wrinkle-Free & Odor Control
Stays crisp and fresh through long duty hours, reducing the need for mid-shift touch-ups.
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Bicomponent Polo Design
Cotton interior for next-to-skin comfort paired with a polyester exterior for lasting durability.
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Built for Base-Layer Wear
Designed to be worn comfortably all day under external carriers without sacrificing performance.
02 Find Your Fit
| Option | Details |
|---|---|
| Upper Body | 55% Polyester / 45% Wool shell fabric |
| Lower Body | Breathable, moisture-wicking polyester exterior with interior cotton fabric |
See our full sizing guide.
03 Comfort & Performance