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.

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