The primary function of the pocket on the inside of the panties is to prevent the development of bacteria that may come into contact with synthetic material.
According to the regulations of the world health standards, the inner part of the panties, which is in direct contact with the intimate parts, must be covered with natural material, ie cotton.
This is especially important for the synthetic underwear models. The natural material must be sewn into the panties, but the stitches on both sides could irritate the intimate support, so that’s why they are not sewn to the panties on one side.
This is precisely the answer to the question what does the small non-carrying pocket serves for.
Its purpose is to prevent contact with synthetic materials that are an excellent ground for developing bacterial infections. The natural material allows smooth breathing of the intimate parts and well absorbs any body fluids.