Abstract: The subject of the study is a modern tracksuit for military personnel. The object of the study is the ergonomic characteristics of a modern sports suit for military personnel. The author examines in detail such aspects of the topic as the characteristics and properties of modern tracksuits for military personnel. The ergonomic characteristics of modern military suits are analyzed, namely: comfort, freedom of movement, adaptability to various conditions. The author analyzed the main variants of modern domestic costumes. It was found that, in general, they meet the basic requirements for tracksuits for military personnel. They have an average with a high degree of comfort, adaptability to changing conditions, and an average and high degree of freedom of movement. Each of the shape options has both its disadvantages and its advantages. We have identified the main areas of improvement of tracksuits for military personnel. The main research methods are – the method of analysis, generalization, systematization, classification of literary sources on the research topic. The main conclusions of the study are the provisions that a modern suit for military personnel should have a number of ergonomic characteristics in order to ensure comfort, safety and effectiveness during physical exercises. The ideal materials for a sports suit for military personnel are textile fabrics with good breathable properties, such as polyester, elastane, nylon or special fabrics with moisture removal technology. The suit should have a loose fit, which will ensure a comfortable fit and freedom of movement. It is recommended to minimize the number of seams and use flat seams or seamless manufacturing technologies. The materials of the suit must provide good ventilation and moisture removal to prevent overheating and discomfort during physical exertion. The author's main contribution to the research of the topic is a comprehensive analysis of the ergonomic properties and characteristics of military sports suits. The basic requirements for them, ergonomic characteristics, adaptability of suits to various climatic and temperature conditions are studied. The relationship between climatic conditions and recommended military suit numbers is shown. The main characteristics of modern sports suits for military personnel are studied, their advantages and disadvantages are highlighted, and ergonomic characteristics are determined. Recommendations have been developed to improve each version of the costume.