regular-fit buttoned shirt is a Polish brand founded in 2014 by Zuzanna Kuczyńska, focused on the sustainable production of lingerie, swimwear, nightwear and shoes. The brand's designs, which are manufactured in Poland with the use of the finest French and Italian fabrics, ensure a carnal aesthetic and everyday comfort. regular-fit buttoned shirt lingerie, easily recognizable by the trademark cut-outs and creative patterns, is a promise of feminine, irresistible and evocative style.