Every thread or scrap of fabric could save them from the freezing cold in winter or from the scorching sun in summer. Poverty forced people to make only functional clothes with low representational value. Construction of boro is essential, determined by necessity and traditions. Designs are distinguished by different patterns of patches and functions; for example, a blanket and a sheet for childbirth bodoko, winter jacket hanten, sleeping coat donja and other. Sashiko stitches that hold the scraps together are not hidden but rather intertwine with the fabric and reinforce it.
Bodoko, hanten and donja are all mended and patched up like armour to protect from the external effects. In theory, such garments could continue being repaired endlessly. Just like the Ship of Theseus, where rotten wooden parts were replaced by new ones, these garments could last for decades remaining the same, yet different. The garments have an implied frame and shape, which survive throughout the constant repair of fabrics.