New body supporting and enhancing garment techniques are provided. In some embodiments, new types of strapless, backless bras and other garments are provided, along with new sizing systems for fitting them to women's bodies. For example, new types and positions of bra straps and bands are provided, in some embodiments. In other embodiments, new systems of internal and external attachment devices, for reversibly connecting adhesives, straps, clothing, and accessories to bras and other garments, are also provided.