Uniforms and insignia of the Red Army (1917–1922)

In its nascent years, the Red Army's uniform was defined by two main factors: the revolutionary symbology developed in 1917 and the abysmal logistical realities of a country in crisis. This typically meant soldiers marching to Civil War battles in shabby World War hand-me-downs and rustic peasant shoes made of bark, if even that.

Source: Wikipedia — Uniforms and insignia of the Red Army (1917–1922) (CC BY-SA 4.0)