In　the　intimate　apparel　industry,　the　evaluation　of　bra　designs　has　traditionally　relied　on　the　practical　experience　of　designers.　The　limitations　of　conventional　evaluation　methods　have　rendered　difficulties　in　analysing　the　effect　of　bra　design　features.　This　research　study　therefore　proposes　a　novel　method　to　simulate　the　interaction　of　the　bra　strap　and　the　movement　of　upper　body.　The　influence　of　the　different　design　features　of　bra　straps　is　evaluated　through　a　full　factorial　analysis　with　the　finite　element　model.　It　is　found　that　elongation　has　the　most　significant　influence　while　Young＇s　modulus　has　the　least　influence　on　the　displacement　of　the　bra　strap　during　movement.　The　proposed　method　is　proven　to　be　an　effective　and　scientific　approach　to　enhance　the　bra　design　and　eliminate　the　time-consuming　＇trial　and　error＇　testing　in　the　design　process　and　hence,　provide　effective　design　modifications　for　today＇s　ever-changing　lingerie　market.