Mil-Tec US M37 Wool Shirt

US M37 Wool Shirt (Repro)

This US M37 wool shirt is a reproduction of the American M37 field shirt, which was introduced in the late 1930s and used by the US Army in the early years of World War II. Early M37 field shirts from the late 1930s and early WWII were typically produced in “olive drab” (OD) wool serge. The model is characterized by its simple and functional design with two chest pockets, classic shirt collar, and a full button closure.

The shirt is made from a wool blend consisting of polyester, wool, and viscose, giving a durable and shape-retaining material that closely resembles the original wool serge. The blend makes the shirt more comfortable to wear and easier to maintain compared to historical 100% wool models.

The cut follows the original M37 style without shoulder straps and without a gas flap, as was correct for the early M37 versions. The shirt can be used as an outer layer in mild weather or as a mid-layer under field jackets, and it is suitable for reenactment, collecting, display, or historically inspired everyday wear.

About wool serge: Wool serge is a traditional military fabric made from wool, woven with a diagonal pattern that provides both strength and durability. The fabric is warm, shape-retaining, and hard-wearing, making it ideal for field shirts, uniforms, and other workwear. The tight weave ensures protection from wind and cold while maintaining a classic, period-accurate appearance, as seen in reproductions like this M37 shirt.