1943 CPO SHIRT - Buffalo White Flannel

The 1943 CPO Shirt from Pike Brothers is a classic flannel shirt inspired by the shirts worn by Chief Petty Officers in the US Navy during World War II. The shirt was developed for work on ships where clothing had to withstand wind, salt water and hard use on deck.

The design follows the pattern from the 1940s, with a roomy construction and two large chest pockets. These details made the shirt practical for sailors who needed both mobility and functional pockets in their daily work.

This version is made from heavy buffalo check flannel in white , a classic check pattern with strong roots in American workwear and outdoor clothing. The fabric is brushed after weaving to provide a soft surface while retaining the durability required for everyday use.

The shirt is produced in Portugal and combines authentic historical details with modern comfort.

About the flannel fabric

The shirt is made from a heavy 310 g/m² cotton flannel . Flannel is produced by brushing the cotton fabric after weaving so that the fibers are raised to the surface. This gives a softer feel and better insulation than regular cotton fabric.

Historically, CPO shirts were often made in a wool blend, but modern reproductions often use cotton flannel for better comfort and easier maintenance.

The heavy quality means that the shirt works both as a regular shirt and as a light overshirt when the temperature drops.

Details

• Buffalo White Flannel

• 100% cotton

• Fabric weight: 310 g/m²

• Authentic 1940s fit

• Two large chest pockets with flaps

• Cat-eye buttons

• Classic CPO construction

• Inspired by US Navy shirts from 1943

• Made in Portugal

• Article number: P0401-23-0017

Size chart (cm)

Measurements are taken when the shirt is lying flat. Slight variations may occur.

The story behind the CPO shirt

CPO stands for Chief Petty Officer , a rank in the United States Navy. The shirt was developed in the 1930s for use on ships where clothing had to be both durable and warm in harsh weather conditions.

The roomy construction and large chest pockets made the garment ideal for work on deck. Today, the CPO shirt is considered a classic in heritage and workwear-inspired clothing.