Sinatra Undervest Long Sleeve Base Shirt

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. The lightweight upper fabric provides breathability, moisture management, durability, comfortable stretch, and shape retention.

01 Professional Features

• Moisture Management

  Advanced fabric technology wicks moisture away to keep you dry and comfortable throughout your shift.

• Stain Resistant & UV Protected

  Guards against stains and sun exposure so the shirt stays sharp-looking, shift after shift.

• Vented Back Yoke

  Air mesh lining and underarm mesh panels boost airflow to keep you cool under external carriers.

• Wrinkle-Free & Odor Control

  Stays crisp and fresh through long duty hours, reducing the need for mid-shift touch-ups.

• Bicomponent Polo Design

  Cotton interior for next-to-skin comfort paired with a polyester exterior for lasting durability.

• Built for Base-Layer Wear

  Designed to be worn comfortably all day under external carriers without sacrificing performance.

02 Find Your Fit

See our full sizing guide.

03 Comfort & Performance