The development of functional clothing products for people with disabilities is one of the priority research directions in the field of the textile industry. The paper presents the results of the comparative analysis of the basic patterns construction for the bra-type product in order to obtain a methodological basis for the design of the postoperative functional-adaptive bra rational ergonomic constructions. The theme timeliness is determined by the sudden drop in the quality of life of women with breast gland cancer after conducting radical surgical treatment. The work aims to obtain data on the ability to adapt the design algorhythm of the basic patterns for the bra-type product to the functions, requirements and characteristics required for the post-mastectomy textile products in general and the postoperative functional-adaptive bra in particular. The paper mentions the problems faced by post-mastectomy women and the textile products role in their prevention. The study includes identifying the functions, requirements and characteristics needed for the post-mastectomy textile products, the development of the basic patterns constructions for the bra product, the comparative analysis of the made patterns. One of the problems that is tried to be solved in this paper is the methods identification of bra-type products design that allows the adaptation of the construction algorithm to the requirements and characteristics necessary for the post-operative bra product. The results of the study are recommended to be used in the process of developing the constructions of post-operative functional-adaptive bra type products for women wearing external breast prostheses.